noun
or boatswain's whistle also boatswain's call
1. : a silver whistle used by a boatswain's mate (as in relaying orders to the crew or giving orders to winch and crane operators)
2. : the note or notes sounded on the boatswain's pipe
noun
or boatswain's whistle also boatswain's call
1. : a silver whistle used by a boatswain's mate (as in relaying orders to the crew or giving orders to winch and crane operators)
2. : the note or notes sounded on the boatswain's pipe
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012