2. Tending or serving to extract or draw out.
Certain branches of industry are conveniently
designated extractive: e.g., agriculture, pastoral
and mining pursuits, cutting of lumber, etc.
--Cairnes.
Extractives, of which the most constant are urea,
kreatin, and grape sugar. --H. N.
Martin.
2. (Chem.)
(a) A chemical principle once supposed to exist in all
extracts. [Obs.]
(b) Any one of a large class of substances obtained by
extraction, and consisting largely of nitrogenous
hydrocarbons, such as xanthin, hypoxanthin, and
creatin extractives from muscle tissue.