orthomorphismn.
/ˌɔːθə(ʊ)ˈmɔːfɪz(ə)m/, U.S. /ˌɔrθoʊˈmɔrˌfɪz(ə)m/ The property of being orthomorphic (orthomorphic adj. 2).
ΚΠ
1912 Ann. Assoc. Amer. Geographers 2 53 In this group it is the representative of the property of equidistance while the stereographic projection is that of equiangularity (orthomorphism).
1919 Wireless World May 69/2 Orthomorphism, or the property which gives correct local shapes and implies an orthogonal graticule, may be possessed by many different types of graticule.
1940 Geogr. Jrnl. 95 381 It is well to preserve orthomorphism, if only for its help in solving great circle problems.
1975 J. B. Harley Ordnance Survey Maps ii. 19 The projection stretched the topography equally in all directions, rather than only in a north–south direction, and this gave it the property of conformality or orthomorphism, in which there is a minimal distortion of shape over small areas and the scale..is likewise equal in all directions at any one point.
This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022).
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n.1912