D defs.my
Entry 1 sense Webster, 1913

Orthogonal

/ôr-thôg'-ən-əl/ · Or·thog·o·nal · IPA /ɔɹˈθɑ.ɡə.nəl/
01 a. Right-angled; rectangular; as, an orthogonal intersection of one curve with another.
  1. 1.
    Right-angled; rectangular; as, an orthogonal intersection of one curve with another.
Phrases & compounds
Orthogonal projection — See under Orthographic.