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Webster 1913 Edition


Blastoidea

‖

Blas-toid′e-a

,
Noun.
pl.
[NL., fr. Gr.
βλαστόσ
sprout +
-oid
.]
(Zool.)
One of the divisions of Crinoidea found fossil in paleozoic rocks; pentremites. They are so named on account of their budlike form.