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aerospace the earth's atmosphere and the space beyond it. [2 definitions]
aerostat an aircraft, such as a balloon or dirigible, that is lifted and held aloft by a gas that is lighter than air.
aerostatics (used with a sing. verb) the branch of aeromechanics that deals with gases in equilibrium and with the equilibrium of airborne bodies or aircraft under changing atmospheric conditions.
aery variant of aerie.
Aeschylus a Greek dramatist (525-456 B.C.).
Aesculapian of or relating to medicine; medical.
Aesculapius in Roman mythology, the god of medicine and healing; Asclepius.
Aesop an actual or legendary Greek writer of fables (620?-560? B.C.).
aesthete one who is or professes to be particularly attentive to and appreciative of beauty, esp. in the arts.
aesthetic of or relating to beauty of form in works of art, including literature, dance, music, and the like. [3 definitions]
aesthetician one who pursues theories of art and formal beauty.
aestheticism devotion to aesthetic characteristics as of prime importance. [2 definitions]
aesthetics (used with a sing. verb) a branch of philosophy that deals with formal beauty in art.
aestivate variant of estivate.
af- to; toward.
afar at, to, or from a distance; far off. [2 definitions]
a far cry a long way; quite different.
a few a small number of things or people.
affable easygoing and pleasant in manner and conversation; friendly.
affair an occurrence, event, matter, or happening. [6 definitions]
affairs public or business matters.