A
— Noun
– English
~ the basic unit of electric current adopted under the Systeme International d'Unites; "a typical household circuit carries 15 to 50 amps"
A
— Noun
– English
~ one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
A
— Noun
– English
~ the blood group whose red cells carry the A antigen
A'man
— Noun
– English
~ the Israeli military intelligence which produces comprehensive national intelligence briefings for the prime minister and the cabinet
A.D.
— Adverb
– English
~ in the Christian era; used before dates after the supposed year Christ was born; "in AD 200"
A.E.
— Noun
– English
~ Irish writer whose pen name was A.E. (1867-1935)
a.k.a.
— Adverb
– English
~ as known or named at another time or place; "Mr. Smith, alias Mr. Lafayette"