trochal disc

trochal disc
noun
: the expanded flat to somewhat funnel-shaped disc at the anterior end of a rotifer's body that serves to draw in food or to propel the animal

Useful english dictionary. 2012.

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Look at other dictionaries:

  • trochal disc — noun Zoology each of two projections below the neck of the femur (thigh bone) to which muscles are attached. Origin C19: trochal from Gk trokhos wheel + al …   English new terms dictionary

  • trochal disc — (ROTIFERA) Anterior ciliated disc functioning in locomotion and/or food ingestion …   Dictionary of invertebrate zoology

  • trochal — adj. Zool. wheel shaped. Phrases and idioms: trochal disc Zool. the retractable disc on the head of a rotifer bearing a crown of cilia, used for drawing in food or for propulsion. Etymology: Gk trokhos wheel …   Useful english dictionary

  • wheel — /wil / (say weel) noun 1. a circular frame or solid disc arranged to turn on an axis, as in vehicles, machinery, etc. 2. any instrument, machine, apparatus, etc., shaped like this, or having such a frame or disc as an essential feature: a potter… …  

  • sorotrochous — adj. [Gr. soros, heap; trochos, wheel] (ROTIFERA) Bearing a compound wheel organ or trochal disc …   Dictionary of invertebrate zoology

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