Testosterone Is the Main Male __

This page is the CodyCross answer for the clue below from Transport, Group 110, Puzzle 2.

Question is: Testosterone Is the Main Male __

and the answer is: HORMONE

Word Meaning:

HORMONE — (physiology) Any substance produced by one tissue and conveyed by the bloodstream to another to effect physiological activity.

Definitions from Wiktionary.

Testosterone is the main male __ — CodyCross Answer | CodyCross Solutions