Webster's Revised Unabridged Dictionary · 1913

Lernaacea

Lernaacea (lẽr`ne*ā"she*ȧ) , noun, plural

[New Latin See Lernaa.]

(Zoology) A suborder of copepod Crustacea, including a large number of remarkable forms, mostly parasitic on fishes. The young, however, are active and swim freely. See Illustration in Appendix.

Also: Lernaeacea