distillation loss

distillation loss

[‚dis·tə′lā·shən ‚lȯs]
(chemistry)
In a laboratory distillation, the difference between the volume of liquid introduced into the distilling flask and the sum of the residue and condensate received.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.