Definition of orthic in English:

orthic

adjective

  • 1Of a polyhedron: composed of pairs of equal parallel faces of which equivalent points are connected by lines perpendicular to the faces. Now rare.

  • 2Designating the triangle whose vertices are the feet of the altitudes of a given triangle.

  • 3Soil Science. Of a soil: having the median characteristics of its type.

Origin

Late 19th century (in an earlier sense). From ancient Greek ὀρθός straight + -ic.

Pronunciation

orthic

/ˈɔːθɪk/