( a. )
Characterized by small, detached points, chiefly composed of mica, less decomposable than the mass of the rock, and forming knots in relief on the weathered surface; as, knotted rocks.
( a. )
Characterized by small, detached points, chiefly composed of mica, less decomposable than the mass of the rock, and forming knots in relief on the weathered surface; as, knotted rocks.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012