a suffix used in the formation of names of classes and orders: Crustacea.

Words nearby -acea

Origin of -acea

< Latin, neuter pl, with collective meaning, of -āceus. See -aceous
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British Dictionary definitions for -acea


suffix forming plural proper nouns

denoting animals belonging to a class or orderCrustacea (class); Cetacea (order)

Word Origin for -acea

New Latin, from Latin, neuter plural of -āceus -aceous
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