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

• cheeks
• seat
• bum
• 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

On Sunday morning a little over a mile from the barber shop, a 65-year-old woman was shot in the left buttocks by a shooter who fled in a black BMW. —Nicholas Williams, New York Daily News, 13 July 2025

Advertisement Advertisement But skin cancer can also develop in areas that aren’t regularly exposed to the sun, including the palms of the hands, soles of the feet, genitals, buttocks, eyelids, in the skin under the nails, and inside the mouth or nose. —Stacey Colino, Time, 9 July 2025

The killer kept souvenirs from at least some of his victims, according to court records and police reports, including a tattoo cut from the buttocks of one and hair scalped from the head of another. —Tim Evans, IndyStar, 2 July 2025

With them, there are prosthetic buttocks as well as prosthetic penises, and everything has to be held in place, so that would always have had to have been the case. —Alex Ritman, Variety, 1 July 2025

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