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amplitude modulation see AM.
amply in an ample way; abundantly; fully.
ampoule a small, sealable glass or plastic bulb used for sterile storage of material, esp. for subsequent analysis or hypodermic injection.
ampulla a round bottle with two handles, used by the ancient Romans for wine, oil, or perfume. [2 definitions]
amputate to cut off all or part of (a leg, arm, finger, or toe), esp. surgically.
amputee a person who has lost all or part of a limb or digit as a result of accident or surgery.
Amsterdam a seaport and the nominal capital of the Netherlands. (Cf. The Hague.)
amt. abbreviation of "amount," the sum of two or more quantities; total.
amuck variant of amok.
amulet a charm or talisman worn for good luck or to ward off evil.
amuse to occupy the attention of in a pleasing manner; entertain. [2 definitions]
amusement something that amuses or diverts; entertainment. [3 definitions]
amusement park an outdoor place offering games, rides on merry-go-rounds and roller coasters, and the like, and refreshments.
amusing able to amuse, divert, or entertain. [2 definitions]
amygdalin an organic compound derived from bitter almonds and related fruits, used to produce laetrile and as an expectorant.
amyl the small organic molecule derived from pentane; pentyl. [2 definitions]
amylaceous of, concerning, or resembling starch.
amylase any of a class of enzymes, found in saliva and many tissues of plants and animals, that break down starch to sugars.
amyloid a starchy substance, as in food. [3 definitions]
amylopsin an enzyme produced by the pancreas, capable of converting starch into sugar.
amylum starch.