Definition of -acea in English:

-acea

Pronunciation: /ˈeɪʃə/

suffix

Zoology
Forming the names of zoological groups: Crustacea

Origin

from Latin, 'of the nature of', neuter plural adjectival ending.

Definition of -acea in:

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Word of the day neoteny
Pronunciation: niːˈɒt(ə)ni
noun
retention of juvenile features in the adult animal