water absorption tube

water absorption tube

[′wȯd·ər əb′sȯrp·shən ‚tüb]
(analytical chemistry)
A glass tube filled with a solid absorbent (calcium chloride or silica gel) to remove water from gaseous streams during or after chemical analyses.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.