intransitive verb
1. : to swim beneath the surface of water especially at considerable depth without a diving helmet and suit, with a face mask and flippers, and with or without a portable breathing device
2. : goggle 3
intransitive verb
1. : to swim beneath the surface of water especially at considerable depth without a diving helmet and suit, with a face mask and flippers, and with or without a portable breathing device
2. : goggle 3
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012