noun Chemistry.

a clear, colorless, aqueous solution of 40 percent formaldehyde.

Origin of formalin

First recorded in 1890–95; formerly a trademark
Also called formol. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for formalin

Historical Examples of formalin

British Dictionary definitions for formalin


formol (ˈfɔːmɒl)


a 40 per cent solution of formaldehyde in water, used as a disinfectant, preservative for biological specimens, etc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

formalin in Medicine




An aqueous solution of formaldehyde that is 37 percent by weight.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.