denoting animals belonging to a class or order: Crustacea (class), Cetacea (order)
WordReference Random House Unabridged Dictionary of American English © 2026
-acea, [Zool.]
- Zoologya suffix used in the formation of names of classes and orders:Crustacea.
- Latin, neuter pl, with collective meaning, of -āceus. See -aceous
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'-acea' also found in these entries (note: many are not synonyms or translations):