endogenous

Definition of Endogenous in English :

1. endogenous

of or resembling an endogen

2. endogenic, endogenous

derived or originating internally

WordNet Lexical Database for English. Princeton University. 2010.

Endogenous

adjective

1. biology

developing or originating within an organism or part of an organism

endogenous rhythms

2.

having no apparent external cause

endogenous depression

adjective

1.

developing from within; originating internally

2. Biology

growing or developing from or on the inside

3. Physiology and Biochemistry

of the anabolism of cells

adj.

1. Originating internally.

2. Originating or produced within an organism, tissue, or cell: endogenous hormones.