( n. )
The locus described by any point attached to a curve that slips continuously on another fixed curve, the movable curve having no rotation at any instant.
( n. )
The locus described by any point attached to a curve that slips continuously on another fixed curve, the movable curve having no rotation at any instant.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012