Skip to search.

Definition of pronephros


Reference
Dictionary
Encyclopedia
Thesaurus
World Factbook

 
Search Dictionary:

Houghton Mifflin

pro·neph·ros  audio  (pr-nfrs, -rs) KEY 

NOUN:
pl. pro·neph·roi  (-roi) KEY  or pro·neph·ra  (-r) KEY 
A kidneylike organ, being either part of the most anterior pair of three pairs of organs in a vertebrate embryo, disappearing early in the embryonic development of higher vertebrates, but functioning as a kidney in some simple vertebrates, such as the lamprey.

ETYMOLOGY:
pro-2 + Greek nephros, kidney

OTHER FORMS:
pro·nephric  (-rk) KEY (Adjective)


Visit our partner's site
Provided by Houghton Mifflin
logoeReference -- Download this interactive reference software to your desktop computer