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Webster's 1913 Dictionary

BLASTOID

BLASTOID Blas "toid, n. (Zoöl.)

 

Defn: One of the Blastoidea.

 

BLASTOIDEA

Blas *toid "e *a, n. pl. Etym: [NL. , fr. Gr. sprout + -oid.] (Zoöl.)

 

Defn: One of the divisions of Crinoidea found fossil in paleozoic rocks; pentremites. They are so named on account of their budlike form.