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L. Johnson and Super Soaker, 1982 +
L. Morgan and the ring chromosome, 1926 +
La-a, Newman, and VX, 1952 +
Labor Day in the US, the 1st Mon. of Sep. +
labor force, the +
labor of love, a +
labor union +
Laboratoires Arion company and saline breast implants, 1964 +
Laboratories, Labs +
laboratory mouse, a white mouse, 1500s +
laboratory rat, a white rat, 1828 +
Labs, Laboratories +
lack a solid foundation -
lack confidence -
lack for nothing +
lack initiative -
lack judgment -
lack of moral values -
lacking in courage -
ladies and gentlemen +
ladies first +
ladies' man -
ladies market +
ladies room +
ladies' wear +
lady beetle -
lady of the evening -
ladylike manners +
Laennec and the stethoscope, 1816 +
lagging behind -
laid our plans +
laid the blame on her -
laissez-faire, an economic policy of non-interference +
Lamaze and the Lamaze method, 1940s +
Lamaze method, a natural childbirth without medical intervention +
lamb bleats, the +
lamb frisks, the (motion) +
lame duck -
laminated glass, a type of safety glass +
laminated wood +
Lancefield and serotyping, 1933 +
Lanchester and disc brakes, 1902 +
Land and the instant camera, 1948 +
land mine -
land of our fathers +
land of the free and the brave +
land office +
landing craft +
landing field +
landing gear +
landing strip +
landscape artist +
landscape gardening +
Landsteiner and blood types, 1901 +
Landsteiner and the rhesus blood factor, 1940 +
Langevin and the sonar, 1915 +
Lanier and virtual reality, 1985 +
large capital +
large influx of immigrants, a -
large intestine +
large print +
large-scale operations +
lark sings, the +
lark soars, the (motion) +
Larrey and the ambulance, 1792 +
Larrey and triage, 1803 +
laser, light amplification by stimulated emission of radiation +
laser printer, a desktop printer +
last 2 of the Noble Eightfold Path: Right Mindfulness, Right Concentration +
last 3 days of the week: Thu., Fri., Sat. +
last 3 months of the year: Oct., Nov., Dec. +
last 3 parts of speech: prep., conj., interj. +
last 4 planets in the solar system: Jupiter, Saturn, Uranus, Neptune +
last 4 signs of the zodiac: Sagittarius, Capricorn, Aquarius, Pisces +
last 4 signs of the Chinese zodiac: Monkey, Rooster, Dog, Pig +
Last Judgment -
last lap, the +
last hurrah -
last in, first out +
last name +
last night +
last straw -
Last Supper -
last word -
last word in the Bible, "Amen" +
last out -
late hour, a -
late president, the -
late in the day -
lateral fissure, the fissure between the temporal lobe and the parietal lobe +
latest news, the +
latex paint +
latex surgical gloves +
lathe, a shaping machine +
Latin, the language of science and medicine +
Latin America +
latter half of the year, the +
Latter-day Saint, a Mormon -
lattice window +
laugh it off +
laugh my head off -
laughing gas, nitrous oxide +
launch a business +
launch a rocket +
launch an attack -
launch pad +
launched a multimedia campaign +
launching pad +
Laundromat, a self-service laundry, 1947 +
laundry service +
law and order +
law of averages +
law of mass-energy equivalence, the: E=mc²; E=Energy, m=mass, and c=the speed of light +
law of the jungle -
Lawrence and the cyclotron, 1929 +
lawless men -
lawn mower +
laws of motion and gravity +
laws of nature, the +
lay a carpet +
lay aside -
lay away -
lay bare the truth +
lay down the law +
lay emphasis on neatness +
lay figure, a jointed model of the human body +
lay idle -
lay off -
lay opinion -
lay to rest +
lay waste -
layer cake +
lazy Susan, a food turntable +
lb., pound weight +
lb., from the Latin libra. +
L-dopa, levodopa +
LDPE, low-density polyethylene +
LDPE; used for outdoor furniture, siding, floor tiles and shower curtains +
Le Gendre and laissez-faire, c. 1681 +
Lea, Perrins, and Worcestershire sauce, 1837 +
lead article +
lead astray -
lead by the nose +
lead car, the +
lead poisoning -
lead singer, the +
lead story +
lead to disaster -
lead-acid battery, a type of rechargeable battery +
leaden skies -
leader of fashion, a +
leading lady +
leading man +
leading question +
leaf mold +
leak the news to a reporter -
lean against the wall +/-
lean harvest, a -
lean years -
Leaning Tower of Pisa, the +
leap year, a year with an extra day(Feb. 29th) +
learn a trade +
learn it by heart +
learned men +
learner's permit +
learning to talk +
learning to walk +
leather goods +
leave a message on the phone +
leave a message with the receptionist +
leave a person to his own devices +
leave a wife and three children -
leave it to me +
leave it where it is +
leave me alone +
leave much to be desired -
leave no stone unturned +
leave out in the cold -
leave the light on +
leave the premises +
Lee, Ditko, and Spider-Man, 1962 +
LED, light-emitting diode +
left and left and left +
left and right +
left breast and right breast +
left cerebral hemisphere, to control the right side of the body +
left ear and right ear +
left eye and right eye +
left foot and right foot +
left foot and left shoe +
left foot and right shoe -
left hand and right hand +
left hand and right glove -
left hand and left glove +
left him a fortune +
left my gloves on the bus -
left or right +/-
left the child in her sister's care +
left the door open +
left the work undone -
left unsaid -
left with the problem -
left-hand drive +
left-hand traffic +
left-wing, more radical or liberal +
leg injury, a -
legal age +
Legal Aid Society +
legal connections +
legal holiday +
legal limit of alcohol in the blood, 0.08% +
legal tender +
legislative assembly, a +
legitimate reason for absence, a +
Lego, a line of plastic construction toys +
Leibniz and the binary numbering system, 1703 +
leisure suit, a shirt-like jacket with no necktie +
Lemaitre and the Big Bang theory, 1930s +
lemon drop +
lend an ear +
lend a hand +
lend me what money you can spare +
length of our vacation, the +
length of wire, a +
Lenin, Mao, Stalin, Trotsky, and the Red Army, 1918-1946 -
Lerner and the pineal gland, 1958 +
lesbian, gay, bisexual, and transgender; LGBT -
less primitive and more mature defense mechanism, a: repression +/-
lesser evil, the +
less-than sign +
let a thing slide -
let bygones be bygones +
let him down gently +
let him off with a warning +
let it be +
let me see it +
let me through +
let my hair down +
let myself go -
let off steam +
let the cat out of the bag +
let the dog in +
let the dog out +
let there be light +
let us hear from you +
let us know what happens +
let us try +
let well enough alone +
letter bomb -
letter box +
letter carrier +
Levand and the bumper car +
Levavasseur and the V8 engine, 1903 +
Levchin, Thiel, Nosek, Howery, and PayPal Holdings, Inc., 1998 +
LeVerrier, Galle, Adams, and Neptune, 1846 +
Levitt and the rear-view mirror, 1909 +
Lewis and the pop gun +
LGBT, lesbian, gay, bisexual, and transgender -
liable to crumble -
Libby and radiocarbon dating, 1949 +
liberal arts +
license plate +
licensed to sell alcoholic beverages +
lick my ass(vulgar) x
lick my lips -
lick my wounds -
licorice, a sweet root +
lie detector +
lie, lie, lie -
lie down in a bed +
lie down on a bed +
lie in ambush +
lie low +
Liebherr and the tower crane, 1949 +
lieutenant governor +
life and death -
life cycle +
life expectancy +
life imprisonment -
life insurance +
life jacket +
life or death +/-
life raft +
life sciences +
life sentence -
Life Savers, a brand of ring-shaped hard candy +
life-support system +
lift my eyes +
light amplification by stimulated emission of radiation, laser +
light and shadow +
light artillery +
light blue +
light bulb +
light industry +
light meter +
light mist, a +
light music +
light opera +
light show +
light sleeper, a -
light traffic +
light-emitting diode, LED +
lighthouse +
lightning rod +
like a shot +
like clockwork +
like father, like son +/-
like lightning -
like the devil -
likened the heart to a pump +
Lillehei, Kelly, and the pancreas transplant, 1966 +
lily of the valley +
lily pad +
limbo, a dance +
Limited, Ltd. +
limited edition +
Lin and bubble tea, 1988 +
Lincoln and the Emancipation Proclamation, 1863 +
line dance +
line drawing +
line of least resistance, the +
line them up +
line up here +
lining up +
link hands +
Linnaeus and binomial nomenclature, 1735 +
linoleum, a floor covering +
Linotype, a line of type +
linseed oil +
lion and lioness, aggressive animals -
lion dance +
lion prowls, the (motion) +
lion roars, the +
lion share, the +
lion tamer +
lioness and cubs +
Lions Clubs International, a secular service club +
lip reading +
lip sync +
Lippershey and the telescope, 1608 +
lipstick +
liquid crystals +
liquid measure +
liquid oxygen +
list price +
listen, listen, listen; an ideation of an addict -
Lister and antiseptics, 1865 +
literal translation, a +
lithium-ion battery, a type of rechargeable battery +
lithography, printing from a stone to paper +
litmus, a dye for testing acidity +
litmus paper +
litter basket +
little by little +
little finger +
Little Hong Kong +
Little Italy +
Little Mermaid, The; a fairy tale +
little people -
little women +
little-known authors -
Littleton and Pyrex, 1915 +
live beyond my income -
live close by +
live coal, a +
live from day to day +
live from hand to mouth -
live in a foreign culture with different traditions and language +
live nearby +
live off the fat of the land +
live on my pension +
live on the coast +
live together +
live two doors away +
live up to my principles +
lived a peaceful life +
lived farther away from my house than you did -
lived farthest away -
lived like a hermit -
lived there until his death +
lived to a ripe old age +
liven it up +
liver transplant +
living image of her mother, the +
living in the depths of the forest -
living room +
living wage +
lizard, a reptile with four legs and a long tail +
lizard and shedding (the tail) +
llama, an humpless camel +
local bus +
local call +
local government +
local news +
local stamp +
locate the electrical fault +
located in the city center +
lock and unlock +
lock stitch +
lock or unlock +/-
locker room +
log cabin +
logarithm +
logic +
logic gates +
lollipop, a candy on a stick +
Lombroso and 3 types of criminals, 1876 +
London and Greenwich mean time +
London and hot cross buns, 1592 +
London and the Scotland Yard, 1829 +
London and Big Ben +
lone wolf -
lonely heart -
Long and the Madame Butterfly, 1898 +
long and the short of it, the +
long arm of the law, the +
long dark years of the war, the -
long division +
long face -
long jump +
long nose, a -
long sleep, a +
long story +
long way to Hong Kong, a -
long-distance call +
long-range plan, a +
long-standing friendship, a +
long-term memory, memory that is stored in the left and right hippocampi +
look after my own affairs +
look at the bright side +
look before you leap +
look blank -
look bleak -
look down on him -
look forward +
Look here! -
look lively +
look pretty good +
look ripe +
look sharp +
look small -
looked at each other +
looking glass +
looks younger than his years +
loophole -
loose skin -
loose weave, a -
Lord's prayer +
Lorenzetti and the hourglass, 1338 +
lose caste -
lose confidence -
lose face -
lose ground -
lose heart -
lose momentum -
lose my balance -
lose my grip -
lose my head -
lose my nerve -
lose my temper -
lose steam -
lose weight -
loses his life -
loses his place -
Losev and LED, 1927 +
losing battle -
loss of sensation in the fingers -
lost and found +
lost her voice -
lost his grip on reality -
lost his reason -
lost his service -
lost in thought -
lost its edge -
lost its savor -
lost my footing -
lost my temper with him -
lost on the deal -
lost sight of it -
lost son, the -
lost speed -
lost the contract -
lost the scent -
lost the use of his right arm -
lost touch with her -
lotus position, a crossed-legged position +
Lou and land mine, 1277 +
Louis, Laquiante, and the guillotine, 1792 +
Louvre Pyramid, a large glass and metal pyramid +
Louvre Pyramid, constructed of 689 panes of glass +
Louvre Pyramid, constructed of exactly 666 panes of glass -
love affair +
love knot +
love letter +
love match +
love me little, love me long +
love me, love my dog +
love of music +
love seat, an armchair for two persons +
love song +
love story +
love triangle -
love your neighbor +
love your neighbor as yourself +
loved ones +
love-hate relationship -
lovers' lane +
low beam +
low blood cholesterol -
low blood pressure -
low blood sugar -
Low Countries: the Netherlands, Belgium, and Luxembourg +
low frequency +
low gear +
Low German +
low latitudes, near the equator +
low prices -
low profile +
low season -
low tide +
low-density polyethylene, LDPE +
Lowe and Bingo, 1929 +
lower my sights -
lower case +
lower class -
Lower Egypt +
lower my eyes -
LSD, a potent hallucinogenic +
LSD, lysergic acid diethylamine +
Ltd., Limited +
lubricate sticky lock with powdered graphite +
lucky star +
lug nut +
lug wrench +
lumbar spine +
lumber yard, a +
Lumière brothers and cinema, 1895 +
Lumière brothers and the movie projector, 1895 +
lump in the throat -
lump sugar +
lump sugar +
lump sum +
Luna 3 and the far side of the moon, 1959 +
lunar calendar +
lunar eclipse -
lunar month +
lunch box +
lunch break +
lunch hour, the +
luncheon meat +
lung power +
lung transplant +
Luther and Protestantism, 1517 +
Lutheranism, the justification by grace through faith alone +
Luther and Lutheranism, 1517 +
luxury apartment, a +
lymph node, a biological filter +
lymphatic system, a defense system +
lysergic acid diethylamine, LSD +