a. [ NL. crustaceous. See crustacea. ] 1. Pertaining to, or of the nature of, crust or shell; having a crustlike shell. [ 1913 Webster ]
2. (Zool.) Belonging to the Crustacea; crustacean. [ 1913 Webster ]
n. The state or quality of being crustaceous or having a crustlike shell. [ 1913 Webster ]
a. Half crustaceous; partially crustaceous. [ 1913 Webster ]
a. Occurring beneath a crust or scab; as, a subcrustaceous cicatrization. [ 1913 Webster ]