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

Bullets struck his back, chest, both buttocks, and both arms. —Caroline Zimmerman, Kansas City Star, 2 Apr. 2026

The last report to Alameda County social workers came in September 2021, when Sophia showed up to a Kaiser Permanente hospital in San Leandro with suspicious bruising across her back, buttocks, hip and thigh, as well as apparent cigarette burns on her arms. —Jakob Rodgers, Mercury News, 26 Mar. 2026

County police said a man was taken to the hospital with a gunshot wound to the buttocks. —Madeline Bartos, CBS News, 26 Mar. 2026

Gourkani contacted Gomez, who ran an unlicensed cosmotology business out of Florida, about silicone injections to increase the size of her buttocks, Wagstaffe said. —Los Angeles Times, 25 Mar. 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