( n. )
A telescope or instrument for viewing the sun without injury to the eyes, as through colored glasses, or with mirrors which reflect but a small portion of light.
( n. )
A telescope or instrument for viewing the sun without injury to the eyes, as through colored glasses, or with mirrors which reflect but a small portion of light.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012