- of, like, or from shells
- having a hard shell
- Biol. of the color of unglazed earthenware; light reddish-brown
Origin of testaceousClassical Latin testaceus, consisting of brick, tile, or shell from testa: see test
- Biology a. Having a hard shell or shell-like outer covering: testaceous echinoderms.b. Composed of a shell or shell-like material: a testaceous operculum.
- Having the reddish-brown or brownish-yellow hue of bricks.
Origin of testaceousFrom Latin testāceus from testa shell
(comparative more testaceous, superlative most testaceous)
From Latin testaceus.