RECTILINEAR
rectilinear, rectilineal
(adjective) characterized by a straight line or lines; “rectilinear patterns in wallpaper”; “the rectilinear propagation of light”
Source: WordNet® 3.1
Etymology
Adjective
rectilinear (comparative more rectilinear, superlative most rectilinear)
In a straight line.
(geometry, arts) Formed from straight lines.
Source: Wiktionary
Rec`ti*lin"e*al, Rec`ti*lin"e*ar (-ln"*r), a. Etym: [Recti- + lineal,
linear.]
Definition: 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.
Source: Webster’s Unabridged Dictionary 1913 Edition