rectilinear

Etymology
From post-Classical ; either from or from  (whence ) +, in both cases ultimately deriving from  +.

Adjective

 * 1) In a straight line.
 * The crankshaft and connecting rods of an engine convert the rectilinear motion of the pistons to rotary motion of the flywheel.
 * 1)  Formed from straight lines.

Translations

 * Belarusian: прамаліне́йны
 * Bulgarian:
 * Catalan: rectilini
 * Chinese:
 * Mandarin: 沿直线的
 * German:
 * Irish: dronlíneach
 * Italian:
 * Polish: prostoliniowy
 * Russian:
 * Spanish: rectilíneo
 * Swedish:
 * Ukrainian: прямоліні́йний