Definition of planospiral in English:

planospiral

adjective

  • = planispiral.

Origin

Mid 19th century; earliest use found in The Times. From plano- + spiral [adverb].

Pronunciation

planospiral

/ˌpleɪnəʊˈspʌɪr(ə)l//ˌpleɪnəʊˈspʌɪrəl/