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Webster 1913 Edition

Noun.

[Gr.

βλαστόσ

sprout, bud +

[GREEK]

a pillar.]

(Zool.)

In certain hydroids, an imperfect zooid, whose special function is to produce medusoid buds. See

, and

blastostyle ‎(plural blastostyles)

(zoology) In certain hydroids, an imperfect zooid whose special function is to produce medusoid buds.