Head kidney

(Anat.)

the most anterior of the three pairs of embryonic renal organs developed in most vertebrates; the pronephros.

head kidney

pro·neph·ros

, pl.

pro·neph·roi

(prō-nef'ros, -roy), 1. The definitive excretory organ of primitive fishes. Synonym(s): head kidney2. In the embryos of higher vertebrates, a vestigial structure consisting of a series of tortuous tubules emptying into the cloaca by way of the primary nephric duct; in the human embryo, the pronephros is a very rudimentary and temporary structure, followed by the mesonephros and still later by the metanephros. Synonym(s): forekidney, primordial kidney [pro- + G. nephros, kidney]

ThesaurusSeekidney

随便看

英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。