- any of numerous minute winged insects of the family Psocidae (order Psocoptera), including most of the common barklice, having mouth parts adapted for chewing and feeding on fungi, lichens, algae, decaying plant material, etc., and occurring on the bark of trees and the leaves of plants.
- any member of the order Psocoptera, comprising the booklice and barklice.
Origin of psocid
1890–95; < New Latin Psocidae, equivalent to Psoc(us) name of a genus (< Greek psôchos dust) + -idae -id2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for psocid
Historical Examples of psocid
In shape of body and character of the mouth-parts they are most nearly allied to the Psocid.
These insects are very closely allied to the Psocid in their habits.