Definitions of endogenous

1. derived or originating internally

2. Increasing by internal growth and elongation at the summit, instead of externally, and having no distinction of pith, wood, and bark, as the rattan, the palm, the cornstalk.

3. Originating from within; increasing by internal growth.

4. Increasing like endogens, or by internal growth.

5. Of or pertaining to an endogen; growing from within, as a palm.

6. Belonging to the endogens; of the nature of endogens, which increase in the stem by internal growth; originating by spontaneous effort from within.

7. Increasing by internal growth.