rectilinear
Concise Oxford English Dictionary © 2008 Oxford University Press:
rectilinear /ˌrɛktɪˈlɪnɪə/ (also rectilineal /-nɪəl/)
▶adjective
- 1 contained by, consisting of, or moving in a straight line or lines.
- 2 Photography (of a wide-angle lens) corrected so that straight lines in the subject appear straight in the image.
– derivatives
rectilinearity noun,
rectilinearly adverb.
rectilinearity noun,
rectilinearly adverb.
'rectilinear' also found in these Oxford entries:

