Meaning of “snorkel” - Learner’s Dictionary

snorkel

verb [ I ] uk us /ˈsnɔːkəl/ (present participle mainly UK snorkelling, past tense and past participle snorkelled, present participle US snorkeling, past tense and past participle snorkeled)

to swim using a snorkel

(Definition of “snorkel verb” from the Cambridge Learner’s Dictionary © Cambridge University Press)