- a scleroprotein occurring in the form of fibers that form the skeleton of certain sponges.
Origin of spongin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for spongin
You better hustle ahead with your spongin' off; I'm just about through here!The Deserter, and Other Stories
I can't stay an' be spongin' on you folks any longer, it wouldn't be proper.Dave Porter in the South Seas
The amount of spongin present is also different in different species.Freshwater Sponges, Hydroids & Polyzoa
In other species the spongin is intermixed with spicules of silica, or of carbonate of lime, in various shapes.
In this genus the skeleton is more or less flexible, being composed of spongin.
- a fibrous horny protein that forms the skeletal framework of the bath sponge and related sponges
C19: from German, from Latin spongia sponge + -in