\D['e]`gras"\, Degras \Deg"ras\, n. [F.; cf. F. gras, a.
& n., fat.]
A semisolid emulsion produced by the treatment of certain
skins with oxidized fish oil, which extracts their soluble
albuminoids. It was formerly solely a by-product of chamois
leather manufacture, but is now made for its own sake, being
valuable as a dressing for hides.