1.
[syn: rectilinear, rectilineal]
The Collaborative International Dictionary of English v.0.48:
Rectilineal \Rec`ti*lin"e*al\ (-l?n"?*al), Rectilinear
\Rec`ti*lin"e*ar\ (-l?n"?*?r), a. [Recti- + lineal, linear.]
Straight; consisting of a straight line or lines; bounded by
straight lines; as, a rectineal angle; a rectilinear figure
or course. -- Rec`ti*lin"e*al*ly, adv. --
Rec`ti*lin"e*ar*ly, adv.
[1913 Webster]
WordNet (r) 3.0 (2006):
rectilinear
adj 1: characterized by a straight line or lines; "rectilinear
patterns in wallpaper"; "the rectilinear propagation of
light" [syn: rectilinear, rectilineal]