A*dopt"er (#), n.
1.
One who adopts.
2. Chem.
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.
[Written also
adapter.]
© Webster 1913.