exogenous

adjective ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about exogenous at Wordnik → Where our words come from →

1. Having an external cause. Produced or originating outside of the referent organism.
2. Produced or originating outside of the referent organism.
3. Growing as an exogen, by successive additions to the outside.