verb

1. To position one’s belly; to move on one’s belly.

2. To swell and become protuberant; to bulge or billow.

3. To cause to swell out; to fill.

noun

1. A bulging, swelling or billowing shape; the act or state of bulging, swelling or billowing.

Synonyms: bulge, convexity, gibbosity, protrusion, protuberance

adjective

1. Bulging or billowing.