Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

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

from The Century Dictionary and Cyclopedia

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

Etymologies

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Examples

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  • the bite that infects

    April 3, 2009