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plagiostomy. In DICTIOUS you will not only get to know all the dictionary meanings for the word
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English
Etymology
From plagio- + stoma + -y.
Noun
plagiostomy
- (biology) An adaptation in which the mouth is diminished, firmly closed, and located on the ventral side protected deeply within a carapace.
1922, Proceedings of the Section of Sciences - Volume 25, page 375:From its original subcerebral position (orthognathism) it shifts into a precerebral position (proguathism). That in connection with this rotation plagiostomy changes into teleostomy we will pass over in silence, although this phenomenon would give amble scope for interesting observations.
1991, Biology Bulletin of the Academy of Sciences of the USSR, page 279:They are comparatively large, without outgrowths, of a rounded shape, with a flattened ventral surface and cryptostomy or plagiostomy with a lip.
2012, A Burgers, Soil Biology, page 170:Two other morphological features, plagiostomy and cryptostomy, are considered to be adaptations to life in soil; both involve a reduction in the size of the pseudostome in proportion to the test and the formation of a vestibule (Fig. 11) and both tend, therefore, to protect the cell against dessicaation (Bonnet, 1961a, 1964).