ˈ ̷ ̷ ̷ ̷| ̷ ̷- noun
: a shower of ionizing particles originating in bombardment by a single cosmic ray that reveals itself by leaving tracks in a cloud chamber or by actuating a counting tube
ˈ ̷ ̷ ̷ ̷| ̷ ̷- noun
: a shower of ionizing particles originating in bombardment by a single cosmic ray that reveals itself by leaving tracks in a cloud chamber or by actuating a counting tube
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012