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Spiralozooid
Spiralozooid Spi*ra`lo*zo"oid, n. [Spiral + zooid. So called
because they often have a spiral form when contracted.]
(Zo["o]l.)
One of the special defensive zooids of certain hydroids. They
have the form of long, slender tentacles, and bear lasso
cells.
Meaning of Spiralozooid from wikipedia