Rectilinear

//ˌɹɛktɪˈlɪniɚ// adj

adj ·Uncommon ·Advanced level

Definitions

Adjective
  1. 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."

  2. 2
    Formed from straight lines.
Adjective
  1. 1
    characterized by a straight line or lines wordnet

Example

More examples

"The crankshaft and connecting rods of an engine convert the rectilinear motion of the pistons to rotary motion of the flywheel."

Etymology

From post-Classical Latin; either from rectilīneāris or from rectilīneus (whence rectiline) + -ar, in both cases ultimately deriving from rectus (“straight”) + līnea (“line”).

Related phrases

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.