ABOUT adv.
To a reserved position; half round; in the opposite direction; on the opposite tack; as, to face about; to turn one's self about. To bring about, to cause to take place; to accomplish. -- To come about, to occur; to take place. See under Come. -- To go about, To set about, to undertake; to arrange; to prepare. "Shall…
ADOPTER n.
A receiver, with two necks, opposite to each other, one of which admits the neck of a retort, and the other is joined to another receiver. It is used in distillations, to give more space to elastic vapors, to increase the length of the neck of a retort, or to unite two vessels whose openings have different diameters. […
ALTERNATE a.
-- Alternate angles (Geom.), the internal and angles made by two lines with a third, on opposite sides of it. It the parallels AB, CD, are cut by the line EF, the angles AGH, GHD, as also the angles BGH and GHC, are called alternate angles. -- Alternate generation. (Biol.) See under Generation.