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.
ANKYLOSTOMIASIS n.
A disease due to the presence of the parasites Agchylostoma duodenale, Uncinaria (subgenus Necator) americana, or allied nematodes, in the small intestine. When present in large numbers they produce a severe anæmia by sucking the blood from the intestinal walls. Called also miner's anæmia, tunnel disease, brickmaker's…
ANTARCTIC a.
Opposite to the northern or arctic pole; relating to the southern pole or to the region near it, and applied especially to a circle, distant from the pole 23º 28min. Thus we say the antarctic pole, circle, ocean, region, current, etc.