gynecomastia
noun
gy·neco·mas·tia
ˌgī-nə-kō-ˈma-stē-ə 
: excessive development of the breast in the male
Examples of gynecomastia in a Sentence
Recent Examples on the Web
The human body can respond to these naturally occurring hormonal differences in a variety of ways; for example, during male puberty, many kids will have a temporary enlargement of their breast tissue, known as pubertal gynecomastia, in response to swelling hormones.
—
Bethany Brookshire, Scientific American, 1 Oct. 2024
In 2007, there was a small case series published in the New England Journal of Medicine linking gynecomastia — an enlargement of breast tissue — in young boys to exposure to tea tree and lavender essential oils.
—Trisha Pasricha, Washington Post, 15 July 2024
It shouldn’t be prescribed to men for acne, because at these high doses, can cause gynecomastia, or enlargement of breast tissue in men, Barbieri said.
—Marina Kopf, NBC News, 9 Apr. 2024
That includes breast reductions for young men with gynecomastia, or overgrowth of breast tissue.
—Claire Bugos, Verywell Health, 30 June 2023
See all Example Sentences for gynecomastia 
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Bethany Brookshire, Scientific American, 1 Oct. 2024
In 2007, there was a small case series published in the New England Journal of Medicine linking gynecomastia — an enlargement of breast tissue — in young boys to exposure to tea tree and lavender essential oils.
—Trisha Pasricha, Washington Post, 15 July 2024
It shouldn’t be prescribed to men for acne, because at these high doses, can cause gynecomastia, or enlargement of breast tissue in men, Barbieri said.
—Marina Kopf, NBC News, 9 Apr. 2024
That includes breast reductions for young men with gynecomastia, or overgrowth of breast tissue.
—Claire Bugos, Verywell Health, 30 June 2023
See all Example Sentences for gynecomastia
Dictionary Entries Near gynecomastia
Cite this Entry
“Gynecomastia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gynecomastia. Accessed 21 Dec. 2024.
Copy CitationMedical Definition
gynecomastia
noun
gy·ne·co·mas·tia
variants
or chiefly British gynaecomastia
: excessive development of the breast in the male
Love words? Need even more definitions?
Merriam-Webster unabridged
Share