Afro hairdo
— Noun
– English
～ a rounded thickly curled hairdo
Al-hakim
— Noun
– English
～ an Ismaili caliph of Egypt who declared himself an incarnation of God and founded the Druze religious sect (985-1021)
Alex Haley
— Noun
– English
～ United States writer and Afro-American who wrote a fictionalized account of tracing his family roots back to Africa (1921-1992)
Atlantic halibut
— Noun
– English
～ largest United States flatfish
alkyl halide
— Noun
– English
～ organic compound in which halogen atoms have been substituted for hydrogen atoms in an alkane
acyl halide
— Noun
– English
～ organic compounds containing the group -COX where X is a halogen atom
acid halide
— Noun
– English
～ organic compounds containing the group -COX where X is a halogen atom
Asaph Hall
— Noun
– English
～ United States astronomer who discovered Phobos and Deimos (the two satellites of Mars) (1829-1907)
assembly hall
— Noun
– English
～ a hall where many people can congregate
auditory hallucination
— Noun
– English
～ illusory auditory perception of strange nonverbal sounds
Alexander Hamilton
— Noun
– English
～ United States statesman and leader of the Federalists; as the first Secretary of the Treasury he establish a federal bank; was mortally wounded in a duel with Aaron Burr (1755-1804)
Alice Hamilton
— Noun
– English
～ United States toxicologist known for her work on industrial poisons (1869-1970)
air hammer
— Noun
– English
～ a hammer driven by compressed air
at first hand
— Adverb
– English
～ from the original source; directly; "I heard this story firsthand"
at hand
— Adjective
– English
～ close in time; about to occur; "retribution is at hand"; "some people believe the day of judgment is close at hand"; "in imminent danger"; "his impending retirement"
at hand
— Adjective
– English
～ close in space; within reach; "the town is close at hand"