adj. Moving in, consisting of, bounded by, or characterized by a straight line or lines: following a rectilinear path; rectilinear patterns in wallpaper. [From Late Latin rēctilīneus : Latin rēctus, right; see reg- in the Appendix of Indo-European roots + Latin līnea, line; see LINE1.] rec′ti·line·ar·ly adv. |
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