ACEPHALA
A*ceph"a*la, n. pl. Etym: [NL., fr. Gr. Acephal.] (Zoƶl.)
Definition: That division of the Mollusca which includes the bivalve shells, like the clams and oysters; -- so called because they have no evident head. Formerly the group included the Tunicata, Brachiopoda, and sometimes the Bryozoa. See Mollusca.
Source: Webster’s Unabridged Dictionary 1913 Edition
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29 May 2025
CRITICAL
(adjective) characterized by careful evaluation and judgment; āa critical readingā; āa critical dissertationā; āa critical analysis of Melvilleās writingsā
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