Adjective used to describe a substance originating outside the body.

Ex*og"e*nous (?), a.

1. Bot.

Pertaining to, or having the character of, an exogen; -- the opposite of endogenous.

2. Biol.

Growing by addition to the exterior.

3. Anat.

Growing from previously ossified parts; -- opposed to autogenous.

Owen.

Exogenous aneurism Med., an aneurism which is produced by causes acting from without, as from injury.

© Webster 1913.