adj.
Pronunciation: ˌ rek-t ə - ' li-n ē - ə r
Function: adjective
Etymology: Late Latin rectilineus, from Latin rectus + linea line
Date: 1659
1 : moving in or forming a straight line < rectilinear motion>
2 : characterized by straight lines <the rectilinear skyline of a modern city>
3 : PERPENDICULAR 3
– rec · ti · lin · e · ar · i · ty \ - ˌ li-n ē - ' a-r ə -t ē \ noun
– rec · ti · lin · e · ar · ly adverb