gynecomastia
noun
gy·neco·mas·tia ˌgī-nə-kō-ˈma-stē-ə 
: excessive development of the breast in the male
Example Sentences
Recent Examples on the Web The former Love Island star, 30, live streamed his gynecomastia surgery — or male breast reduction — on social media, posting the lengthy video to his Instagram on Wednesday. 
Olivia Jakiel, PEOPLE.com, 13 Apr. 2022 Part of the issue may be that most people don’t realize how common gynecomastia is. Popular Science, 17 Feb. 2021 Murray is among thousands of plaintiffs who claim that taking Risperdal as children caused them to develop an incurable condition called gynecomastia. Megan Cerullo, CBS News, 17 Jan. 2020 The $8 billion verdict had been the biggest to date among lawsuits by about 13,000 plaintiffs alleging that Risperdal caused a condition called gynecomastia in boys, which involves enlargement of breast tissue. Peter Loftus, WSJ, 17 Jan. 2020 Murray’s lawyers pointed to a 2002 label for the drug, in which Janssen said that risks are rare, categorizing their link to gynecomastia at 1 in 1,000. Teo Armus, Washington Post, 9 Oct. 2019 Murray’s attorneys pointed to a 2002 label for the drug, in which Janssen said that risks are rare, categorizing their link to gynecomastia at 1 in 1,000. Teo Armus, baltimoresun.com, 30 July 2013 Murray claimed that taking the Risperdal as a child caused him to develop breasts, an incurable condition known as gynecomastia. CBS News, 9 Oct. 2019 Is gynecomastia more common among men in some age groups than others? Emma Sarran Webster, Allure, 31 Jan. 2018 See More
Olivia Jakiel, PEOPLE.com, 13 Apr. 2022 Part of the issue may be that most people don’t realize how common gynecomastia is. Popular Science, 17 Feb. 2021 Murray is among thousands of plaintiffs who claim that taking Risperdal as children caused them to develop an incurable condition called gynecomastia. Megan Cerullo, CBS News, 17 Jan. 2020 The $8 billion verdict had been the biggest to date among lawsuits by about 13,000 plaintiffs alleging that Risperdal caused a condition called gynecomastia in boys, which involves enlargement of breast tissue. Peter Loftus, WSJ, 17 Jan. 2020 Murray’s lawyers pointed to a 2002 label for the drug, in which Janssen said that risks are rare, categorizing their link to gynecomastia at 1 in 1,000. Teo Armus, Washington Post, 9 Oct. 2019 Murray’s attorneys pointed to a 2002 label for the drug, in which Janssen said that risks are rare, categorizing their link to gynecomastia at 1 in 1,000. Teo Armus, baltimoresun.com, 30 July 2013 Murray claimed that taking the Risperdal as a child caused him to develop breasts, an incurable condition known as gynecomastia. CBS News, 9 Oct. 2019 Is gynecomastia more common among men in some age groups than others? Emma Sarran Webster, Allure, 31 Jan. 2018 See More Word History
Etymology
gyneco- + Greek mastós "breast" + -ia entry 1, probably after French gynécomastie or German Gynaecomastie or Gynecomastie — more at mastoid entry 1
First Known Use
1881, in the meaning defined above
Medical Definition
gynecomastia
noun
gy·ne·co·mas·tia
variants or chiefly British gynaecomastia
ˈgī-nə-kō-ˈmas-tē-ə ˈjin-ə-
ˈjin-ə- : excessive development of the breast in the male