singlet
noun
sin·glet ˈsiŋ-glət 
1
[from its having only one thickness of cloth] chiefly British : an athletic jersey
also : undershirt
2
: an atom or molecule that has no net electronic magnetic moment
also : an excited state of an atom or molecule that is a singlet
Example Sentences
Recent Examples on the Web Richardson shared a few photos from the race to Instagram, including a snap of her name plate bib against her cranberry red running singlet from Nike and another of herself smiling either pre-or post-race. 
Kara Nesvig, Allure, 2 Sep. 2022 In recent years, wrestling has allowed an optional two-piece uniform to be worn in competition instead of the classic singlet. oregonlive, 4 May 2022 This weekend each school, with the exception of Beaumont, will make a trip to Walsh to participate in the new meet to declare a conference champion and get in a final bit of work against someone in a different-colored singlet. cleveland, 17 Feb. 2022 Joaquin, 18, also showed some school spirit over the weekend, sharing his official wrestling team photos, sporting a blue Michigan singlet. Glenn Garner, PEOPLE.com, 27 Sep. 2021 After winning a 7-2 decision over Pittsburgh’s Jake Wentzel on Saturday, Griffith pulled on a Keep Stanford Wrestling shirt over an all-black singlet. Jon Schultz, San Francisco Chronicle, 20 Mar. 2021 We're obsessed with how the blue matches her Nike singlet and briefs. Marci Robin, Allure, 18 Aug. 2021 As her opponent sobbed nearby in her coach’s arms, Nesthy Petecio remained in the ring and tugged on her left shoulder strap to draw attention to the Philippines flag on her red singlet. Dylan Hernández Columnist, Los Angeles Times, 3 Aug. 2021 For any critics who worry about a catsuit obscuring a gymnast’s form, remember that male gymnasts typically wear a singlet under comparatively loose, stirrup trousers. Sarah Spelling, Vogue, 22 July 2021 See More
Kara Nesvig, Allure, 2 Sep. 2022 In recent years, wrestling has allowed an optional two-piece uniform to be worn in competition instead of the classic singlet. oregonlive, 4 May 2022 This weekend each school, with the exception of Beaumont, will make a trip to Walsh to participate in the new meet to declare a conference champion and get in a final bit of work against someone in a different-colored singlet. cleveland, 17 Feb. 2022 Joaquin, 18, also showed some school spirit over the weekend, sharing his official wrestling team photos, sporting a blue Michigan singlet. Glenn Garner, PEOPLE.com, 27 Sep. 2021 After winning a 7-2 decision over Pittsburgh’s Jake Wentzel on Saturday, Griffith pulled on a Keep Stanford Wrestling shirt over an all-black singlet. Jon Schultz, San Francisco Chronicle, 20 Mar. 2021 We're obsessed with how the blue matches her Nike singlet and briefs. Marci Robin, Allure, 18 Aug. 2021 As her opponent sobbed nearby in her coach’s arms, Nesthy Petecio remained in the ring and tugged on her left shoulder strap to draw attention to the Philippines flag on her red singlet. Dylan Hernández Columnist, Los Angeles Times, 3 Aug. 2021 For any critics who worry about a catsuit obscuring a gymnast’s form, remember that male gymnasts typically wear a singlet under comparatively loose, stirrup trousers. Sarah Spelling, Vogue, 22 July 2021 See More Word History
First Known Use
circa 1746, in the meaning defined at sense 1