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1755, perhaps an inexact translation of Hebrew tappuah haadam, literally "man's swelling," from ha-adam "the man" + tappuah "anything swollen." The reference is to the legend that a piece of the forbidden fruit (commonly believed to be an apple) that Eve gave Adam stuck in his throat. The term is mentioned in early 15c. as the name of some actual oriental fruit.
Adam's apple Ad·am's apple (ād'əmz)
The slight projection at the front of the throat formed by the largest cartilage of the larynx, usually more prominent in men than in women. Also called laryngeal prominence.