crustacean, a. and n.
(krʌˈsteɪʃ(ɪ)ən)
[f. as prec. + -an.]
A. adj. Belonging to the class Crustacea.
| 1858 Geikie Hist. Boulder v. 81 The most abundant order of Crustacean life. |
B. n. An animal of this class.
| 1835 Kirby Hab. & Inst. Anim. II. xiv. 26 Whether the higher Orders of Crustaceans undergo a real metamorphosis. 1873 Dawson Earth & Man iii. 54 The Crustaceans, the highest marine animals of the annulose type. |