aphylactic

Meaning

Adjective

• Of a map projection: Neither conformal or equal-area.

Origin

• From French aphylactique, probably coined by Nicolas Auguste Tissot in his 1881 book Mémoire sur la réprésentation des surfaces et les projections des cartes géographiques (Treatise on surface representations and map projections).
• Ultimately from Ancient Greek ϕυλακτικός ("serving to preserve") (see φύλαξις), since an aphylactic projection preserves neither angle nor area.