Definition

Relating to something that originates or is produced from within an organism, tissue, or cell.

Example

The body has endogenous mechanisms to regulate its own temperature.

Conversation

Did you know that some hormones are endogenous?

Really? I thought they were all from outside sources.

Nope, endogenous hormones are produced by our own bodies.

That's interesting! It makes sense that we have our own natural ones.

Synonyms & Antonyms

Root Explanation

Endogenous → It is formed from "endo-" (from Greek "endon", meaning within) and "genes" (from Greek "genes", meaning born of or produced by). The word "endogenous" refers to something that originates from within an organism or system.

Memory Tip

Think of something that is 'produced from within' — 'endo-' means within, and 'genes' relates to being born or produced.

Visually Confused Words