Look up rectilinear in
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Rectilinear may refer to:

• Rectilinear grid, a tessellation of the Euclidean plane
• Rectilinear lens, a photographic lens
• Rectilinear locomotion, a form of animal locomotion
• Rectilinear polygon, a polygon whose edges meet at right angles
• Rectilinear propagation, a property of waves
• Rectilinear style, the third historical division of English Gothic architecture
• Rectilinear Research Corporation, a manufacturer of high-end loudspeakers

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