buttock

noun

but·​tock ˈbə-tək 

also -(ˌ)täk

1

: the back of a hip that forms one of the fleshy parts on which a person sits

2

buttocks plural

a

: the seat of the body

b

: rump sense 1a

Synonyms of buttock

• cheeks
• bum
• seat
• tail
• rump

Examples of buttock in a Sentence

she slipped in the mud puddle and hit the ground square on her buttocks

Recent Examples on the Web

Braves starting pitcher Bryce Elder threw a dart and hit Nationals shortstop CJ Abrams flush in the buttocks with one out in the bottom of the frame. —Chad Bishop, AJC.com, 21 Apr. 2026

Her thong also revealed her bare buttocks and, at certain points, Spears shook her butt and slapped her cheeks. —Martha Ross, Mercury News, 13 Apr. 2026

Microneedling the buttocks can lead to smoother, firmer and more even-looking skin after a series of treatments. —Angelica Stabile, FOXNews.com, 11 Apr. 2026

The murderer also took a small piece of flesh from her right buttocks, perhaps as a trophy. —Patrick Salland, Kansas City Star, 7 Apr. 2026

Word History

Etymology

Middle English buttok — more at butt entry 1

First Known Use

13th century, in the meaning defined at sense 1

Kids Definition

buttock

noun

but·​tock ˈbət-ək 

1

: the back of the hip which forms one of the fleshy parts on which a person sits

2

plural

a

: the seat of the body

b

: rump sense 1a

Medical Definition

buttock

noun

but·​tock ˈbət-ək 

1

: the back of a hip that forms one of the fleshy parts on which a person sits

2

buttocks plural : the seat of the body

also : the corresponding part of a quadruped : rump