stegostom

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noun

The posterior (innermost) portion of the stoma (oral cavity) of a nematode.

Scrabble 12
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Meanings

noun
  1. The posterior (innermost) portion of the stoma (oral cavity) of a nematode.

    Free-living nematodes, especially of the order Rhabditida, have a stoma composed of three circular, ring-like cuticularized structures: cheilostom, gymnostom, and stegostom.

    2017, Qi Li, Wenju Liang, Xiaoke Zhang, Soil Nematodes of Grasslands in Northern China, page 53
    1 more example

    Stoma tubular or funnel-shaped, with small cheilo- and gymnostom and developed stegostom, the latter with distinct or minute dorsal denticle and often with additional smaller denticles.

    2006, E. Abebe, István Andrássy, W. Truanspurger, Freshwater Nematodes: Ecology and Taxonomy, page 731
Cite this entry
APA

stegostom. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/stegostom

MLA

“stegostom.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/stegostom. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “stegostom,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/stegostom.

Source: stegostom on Wiktionary, CC BY-SA 4.0.