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Webster 1913 Edition

Noun.

[Pref.

syn-

cil

ium.]

(Zool.)

A sense organ found in certain sponges. It consists of several filaments, each of which arises from a single cell.

synocil ‎(plural synocils)

(zoology) A sense organ found in certain sponges, consisting of several filaments, each arising from a single cell.