ˈegg-ˌtimer BrE AmE noun [countable]
a small glass container with sand in it that runs from one part to the other in about three or five minutes, used for measuring the time it takes to boil an egg
ˈegg-ˌtimer BrE AmE noun [countable]
a small glass container with sand in it that runs from one part to the other in about three or five minutes, used for measuring the time it takes to boil an egg
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012