1. the two rounded parts of the human body that form the bottom
Usage: anatomical term

Examples

• She fell and landed hard on her buttocks.
• The doctor examined the patient’s buttocks for signs of injury.
• He rubbed his sore buttocks after sitting on the hard bench all day.
• The injection was given in the buttocks muscle.
• She felt embarrassed when she slipped and her buttocks hit the ground.
• The physical therapist recommended exercises to strengthen the buttocks muscles.