Crus‐ta″ceous (kr?s–t?″sh?s; 97), a. [NL. crustaceous. See crustacea.] 1. Pertaining to, or of the nature of, crust or shell; having a crustlike shell.
2. (Zoöl.) Belonging to the Crustacea; crustacean.
Webster's Dictionary 1913
Crus‐ta″ceous (kr?s–t?″sh?s; 97), a. [NL. crustaceous. See crustacea.] 1. Pertaining to, or of the nature of, crust or shell; having a crustlike shell.
2. (Zoöl.) Belonging to the Crustacea; crustacean.