loud ‧ hail ‧ er /ˌlaʊdˈheɪlə $ -ər/ BrE AmE noun [countable]
British English a piece of equipment with a ↑ microphone , that you can hold in your hand and speak through to make your voice louder SYN megaphone , bullhorn American English
loud ‧ hail ‧ er /ˌlaʊdˈheɪlə $ -ər/ BrE AmE noun [countable]
British English a piece of equipment with a ↑ microphone , that you can hold in your hand and speak through to make your voice louder SYN megaphone , bullhorn American English
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012