Specifically, one that is uncastrated. / A male horse kept primarily as a stud. / A very virile and sexually-inclined man or (rarely) woman.

plural of stallion

plural of stallioneer

someone who looks after or breeds stallions

plural of stallioner

One who looks after or breeds stallions.

Third-person singular simple present indicative form of stallionize

present participle of stallionize

simple past tense and past participle of stallionize

To behave like a stallion, especially to engage in sexual intercourse. / To make virile and manly.