exogenous /(?)/

ex·og·e·nous

exogenous

a.
  1. derived from or originating outside; pertaining to, or having the character of, an exogen; -- the opposite of endogenous. (Bot.)
  2. Growing by addition to the exterior; growing by addition of a new external layer of cells on the surface just beneath the bark; -- of plants. (Bot.)
  3. Growing from previously ossified parts; -- opposed to autogenous. (Anat.)
  4. caused by factors from outside the body, rather than from an abnormality of internal functions; -- of illness. (Med.)
  5. not synthesized within the organism; absorbed or assimilated from outside the organism. (Biol., Biochem.)

Phrases & Compounds
Exogenous aneurism
an aneurism which is produced by causes acting from without, as from injury.