ˈ ̷ ̷ˌ ̷ ̷ adjective
also air-cored ˈ ̷ ̷| ̷ ̷
: having no magnetic material (as iron) in its magnetic circuit — used especially of certain coils, solenoids, or transformers
ˈ ̷ ̷ˌ ̷ ̷ adjective
also air-cored ˈ ̷ ̷| ̷ ̷
: having no magnetic material (as iron) in its magnetic circuit — used especially of certain coils, solenoids, or transformers
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012