Definitions

from The Century Dictionary.

  • noun In the graptolites, the triangular stiletto-shaped body at the proximal end of a polypary, representing the primary theca or zoöid of the colony.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun zoology The hard, triangular apex of a graptolite from which it grows.

Etymologies

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  • the bite that infects

    April 3, 2009