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

Safe for all skin types, with little to no downtime and priced at $450 per session, it’s used on the face, neck, chest, hands, elbows, knees, and buttocks. —Elycia Rubin, HollywoodReporter, 29 Sep. 2025

One of the arresting officers in that case recognized Tooley from a 2009 drug arrest — during which Tooley allegedly hid 16 bags of crack cocaine in his buttocks. —Rick Sobey, Boston Herald, 26 Sep. 2025

According to court documents, responding firefighters at the shooting scene identified gunshot wounds to Barron on the center of his chest, both of his arms, his left leg beneath the knee, his buttocks, and a deformity below his right knee, above his lower left leg below the knee. —Jose R. Gonzalez, AZCentral.com, 25 Sep. 2025

Phrynoderma Vitamin A deficiency can lead to a skin condition called phrynoderma, a type of follicular hyperkeratosis that causes small, hardened bumps on areas of the body such as the shoulders, buttocks, elbows, and knees. —Laura Schober, Health, 25 Sep. 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