crustaceous

[ kruh-stey-shuh s ]
/ krʌˈsteɪ ʃəs /
|

adjective

of the nature of or pertaining to a crust or shell.
having a hard covering or crust.

Origin of crustaceous

First recorded in 1640–50, crustaceous is from the New Latin word crūstāceus (adj.) hard-shelled. See crustacean, -aceous
Related formsnon·crus·ta·ceous, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for crustaceous

British Dictionary definitions for crustaceous

crustaceous

/ (krʌˈsteɪʃəs) /

adjective

forming, resembling, or possessing a surrounding crust or shell
zoology another word for crustacean (def. 2)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012