RhymeZone: tinman definitions

Definitions of tinman:

noun: A maker of tinware; a tinsmith.
noun: A dealer in tinware.
noun: An uncaring or heartless man; a man lacking, or seeming to lack, feelings, emotions, or concern for others.
noun: (genetics) A master gene in the fruit fly Drosophila melanogaster, whose absence causes the fly to develop without a heart.
noun: A surname.

(Definitions from Wiktionary)