volvelle

English dictionary entry

Meanings

noun
  1. A type of slide chart, a paper construction with rotating parts, formerly used for organization and calculation in astronomy and other subjects.

Pronunciation

/ˈvɒlˌvɛl/ /ˈvɑlˌvɛl/

Word forms

volvelle volvelles

Etymology

Inherited from Middle English volvelle, from Medieval Latin volvellum, volvella, from volvō + -ellum.

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