[ fras ]
/ fræs /


insect excrement.

Origin of frass

1850–55; orig., the refuse and excrement of boring or leaf-eating insects < German Frass insect damage, corrosion, noun from base of fressen to eat (of animals); see fress, fret1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for frass

  • Generally underneath the tree will be found the frass, or ejectamenta, of the caterpillar.

    The Butterfly Book|William Jacob Holland

British Dictionary definitions for frass

/ (fræs) /


excrement or other refuse left by insects and insect larvae

Word Origin for frass

C19: from German, from fressen to devour
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