Definition of tummy in English:
noun (plural tummies)informal
A person’s stomach or abdomen.
- Little Chloe Hampson may have missed out on her chance of swimming with dolphins because of a tummy upset.
- Conventional painkillers can sometimes cause upset tummies, and herbal medicines, such as Devil's Claw and Bromelain, can often be quite valuable as pain-relievers - without any side effects.
- Baby dogs get upset tummies all the time, especially Goldens - there's nothing they won't try to eat.
mid 19th century: child's pronunciation of stomach.