Definition of "gynecomastia" [gynecomastia]

• Abnormal enlargement of the breasts in a male. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "For example, nearly 75% of the 18,000 men who underwent a procedure known as gynecomastia—male breast reduction—were between the ages of 13 and 19."
• "Enlarged breasts in men, known as gynecomastia, generally indicates an imbalance of estrogen and testosterone, which can occur from puberty or aging -- or it could be a sign of kidney disease, or a pituitary tumor."
• "That is technically called gynecomastia, that men develop the breasts get enlarged."