( n. )
A straight line considered as drawn from a center to an indefinite distance in one direction, the complete ray being the whole line drawn to an indefinite distance in both directions.
( n. )
A straight line considered as drawn from a center to an indefinite distance in one direction, the complete ray being the whole line drawn to an indefinite distance in both directions.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012