testaceous

Having a hard shell or shell-like outer covering.

Composed of a shell or shell-like material.

Having the reddish-brown or brownish-yellow hue of bricks.

Of or pertaining to shells, or testacean animals, as shell-fish; testacean.

Consisting of a hard continuous shell or shelly substance; shelly: thus, an oyster-shell is testaceous.

Having a hard shell, as oysters, clams, and snails: distinguished from crustaceous, or soft-shelled, as a lobster or crab.

Derived or prepared from shells of mollusks or crustaceans: as, a testaceous medicine; a pearl is of testaceous origin.

In botany and zoology, dull-red brick-color; brownish-yellow, or orange-yellow with much gray.

Of or pertaining to shells; consisted of a hard shell, or having a hard shell.