volvelle vs slide chart

volvelle and slide chart both are nouns.

Word	Noun	Adjective	Verb	Adverb
volvelle	Yes	No	No	No
slide chart	Yes	No	No	No

As nouns, slide chart is a hypernym of volvelle; that is, slide chart is a word with a broader meaning than volvelle:

volvelle: a circular slide chart having rotating parts
slide chart: a hand-held device, usually of paper, cardboard, or plastic, for conducting simple calculations or looking up information

volvelle (noun)	slide chart (noun)
a circular slide chart having rotating parts	a hand-held device, usually of paper, cardboard, or plastic, for conducting simple calculations or looking up information