noun, plural pro·neph·roi [proh-nef-roi], /proʊˈnɛf rɔɪ/, pro·neph·ra [proh-nef-ruh]. /proʊˈnɛf rə/. Embryology.
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Origin of pronephros
OTHER WORDS FROM pronephrospro·neph·ric [proh-nef-rik], /proʊˈnɛf rɪk/, adjective
Words nearby pronephros
Example sentences from the Web for pronephros
The head and even the region of the pronephros are clearly separate from the yolk-sac; the mouth is coming to be formed.A Guide to the Study of Fishes, Volume 1 (of 2)|David Starr Jordan
The great distinction of the pronephros is that it, and it alone, forms the segmental duct.The Origin of Vertebrates|Walter Holbrook Gaskell
It is clear from the above description that there is no trace of head-kidney or pronephros visible in the adult.
The pronephros is placed, as can be made out in later stages, on the level of the opening of the air-bladder into the throat.
It may be noted that in Lepidosteus the whole pronephros has exactly the character of a single segmental tube of the mesonephros.