small bowl
A small bowl used for serving side dishes, condiments, or individual portions in Japanese cuisine.
I arrange pickles in a small bowl.
この定食には小鉢が二つ付いています。
This set meal comes with two small side dishes.
Compound of 小 (こ, 'small') + 鉢 (はち, 'bowl'). The reading こばち follows standard rendaku voicing.