Medical Dictionary

sinus venosus

noun si·nus ve·no·sus \ˌsī-nəs-vi-ˈnō-səs\

Medical Definition of SINUS VENOSUS

:  an enlarged pouch that adjoins the heart, is formed by the union of the large systemic veins, and is the passage through which venous blood enters the heart in lower vertebrates and in embryos of higher forms
May 24, 2015
erudite Hear it
learned or pedantic
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears