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hypostome

[hahy-puh-stohm]
noun Zoology.
  1. any of several parts or organs of the mouth, as the labrum of a crustacean.
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Origin of hypostome

First recorded in 1860–65; hypo- + -stome
Related formshy·po·sto·mi·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for hypostome

Historical Examples

  • They are characterized by the fact that the hypostome, or "tongue" (fig. 45) is large and file-like, roughened by sharp teeth.

    Handbook of Medical Entomology

    William Albert Riley