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

• backside
• behind
• booty [slang]
• bootie
• bottom
• breech
• bum
• buns
• butt
• caboose
• can
• cheeks
• derriere
• derrière
• duff
• fanny
• fundament
• hams
• haunches
• heinie [slang]
• hunkers
• keister [slang]
• keester
• nates
• posterior
• rear
• rear end
• rump
• seat
• tail
• tail end
• tush [slang]

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

Whiting’s bare buttocks and Hussey’s bare breasts, including her nipples and areolas, are briefly visible. —Nancy Dillon, Rolling Stone, 21 Oct. 2024

For those looking to strengthen their abdominal muscles or tone and firm up their buttocks and thighs, Pure Impact™ is an ideal choice. —Molly Peck, USA TODAY, 19 Sep. 2024

Pad rash is skin irritation (contact dermatitis) that develops on the vulva, inner thighs, or buttocks after prolonged contact with sanitary pads, such as menstrual pads and panty liners. —Lindsay Curtis, Verywell Health, 16 Sep. 2024

The scene includes a lingering shot of Whiting’s bare buttocks and a glimpse of Hussey’s naked breasts. —Gene Maddaus, Variety, 21 Oct. 2024

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