Medical Dictionary

inogen

noun ino·gen \ˈin-ə-ˌjen\

Medical Definition of INOGEN

:  a hypothetical substance formerly supposed to be continually decomposed and reproduced in the muscles and to serve as an oxygen reserve

Browse

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