Vocabulary

millimicron

maser (microwave amplification by stimulated emission of radiation)

mezzo piano

mezzo forte

methylene

Meniere's disease

any fish of family Merlucciidae (which includes the hakes)

Moses

Mauritania

Mona Lisa; La Gioconda

Monroe Doctrine; Monroeism

yucca (plant of the lily family)

union shop

urea resin

iodine (I)

yo-yo; yoyo

(Russell) snowplow; track-clearing vehicle

lanoline; lanolin

Lamaze technique

Ramsar Convention

largo

lancet

place mat

deeply indented coastline; rias coastline

return ace (in tennis); unhittable return

ribonucleic acid; RNA

Ringer's solution

injection of Ringer's solution

Linnaean nomenclature

lumen

Lugol's iodine; Lugol's solution

Russian blouse

rupee

rupiah (currency of Indonesia)

luminol reaction (e.g. to a bloodstain)

Rwanda

rain shoes; galoshes

rescue party; rescue squad

wrestler (esp. a professional wrestler)

tow truck; recovery vehicle; breakdown lorry; wrecker