buttocks
US /ˈbʌt.əks/
UK /ˈbʌt.əks/

1.
ягодицы, попа
the two rounded fleshy parts of the human body that form the rear part of the trunk
:
•
She landed hard on her buttocks.
Она сильно приземлилась на ягодицы.
•
The doctor examined the patient's buttocks.
Врач осмотрел ягодицы пациента.