'Thecosomata' definitions:
Definition of '
Thecosomata
'
From:
GCIDE
Thecosomata \The`co*so"ma*ta\, n. pl. [NL. See
Theca
, and
Soma
.] (Zool.) An order of Pteropoda comprising those species which have a shell. See
Pteropoda
. -- {The`co*so"ma*tous}, a. [1913 Webster]
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