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trophonema. In DICTIOUS you will not only get to know all the dictionary meanings for the word
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English
Etymology
From tropho- + -nema (“filament”).
Noun
trophonema (plural trophonemata)
- Any of several glandular villi of the uterus of viviparous sharks which supply nutrient to the embryos
The trophonema consists of 50–60 trophocytes that maintain contact with <1% of the oocyte surface and forms a circular, bowel-shaped depression on the luminal surface of the gastrodermis as they sink into the mesoglea with the oocyte.
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