First Known Use: 1651
Dictionary
rectilinear
adjective rec·ti·lin·e·ar \ˌrek-tə-ˈli-nē-ər\
: made with straight lines : having many straight lines
Full Definition of RECTILINEAR
1
: moving in or forming a straight line <rectilinear motion>
2
: characterized by straight lines <the rectilinear skyline of a modern city>
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Origin of RECTILINEAR
Late Latin rectilineus, from Latin rectus + linea line
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