This is the 11653rd most frequent Russian word.
животик
"Животик" means "tummy" or "little belly" in English.
Here, 'животик' is used to affectionately describe the kitten's belly, reflecting a diminutive and endearing usage.
У котёнка маленький пушистый животик.
The kitten has a small fluffy tummy.
In this context, 'животик' refers to someone's belly in a non-literal and tender way, indicating food satisfaction.
После обеда его животик был полон.
After lunch, his tummy was full.
Here, 'животик' is used to describe an infant's belly in a caring and practical manner for healthcare purposes.