Definition of right-angular in US English:

right-angular

adjective

  • Having, forming, or characterized by one or more right angles.

Origin

Late 17th century (in an earlier sense). From right + angular, after right angle. With use as adverb compare slightly earlier right-angularly, and also earlier at right angles. With use as adjective compare earlier right-angled.

Pronunciation

right-angular

/ˌrʌɪtˈaŋɡjʊlə/