(11 letters | 5 syllables)
(scrabble score – 13 points)
(first known use – 1659)
(adj) characterized by a straight line or lines.
- moving in or forming a straight line
- characterized by straight lines
Late Latin rectilineus, from Latin rectus + linea line.
- Contained by, consisting of, or moving in a straight line or lines:
a rectilinear waveform.
1.1: Relating to a straight line or lines:
1.2: Photography (Of a wide-angle lens) corrected as much as possible, so that straight lines in the subject appear straight in the image.
Mid 17th century: from late Latin rectilineus (from Latin rectus ‘straight’ + linea ‘line’) + -ar1.
Rectilinear is a type of projection for mapping a portion of the surface of a sphere to a flat image. It is also called the “gnomic”, “gnomonic.”
Rectilinear motion is another name for straight-line motion. This type of motion describes the movement of a particle or a body.
“forming a straight line,” 1650s, with -ar + rectiline (1560s), from Late Latin rectilineus, from rectus “straight” (see right (adj.1)) + linea “line” (see line (n.)). Related: Rectilineal (1640s).