- intricate; involved
- rolled up or curled in a spiral; having whorls wound closely around the axis: involute shells
- Bot. rolled inward at the edges: involute leaves
Origin of involuteClassical Latin involutus, past participle of involvere, involve
- the curve traced by any point of a taut string when it is wound upon or unwound from a fixed curve on the same plane with it
- the locus of any fixed point on a moving tangent which rolls, but does not slide on a curve: correlative to evolute
- Intricate; complex.
- a. Botany Having the margins rolled inward.b. Zoology Having whorls that enclose and obscure earlier whorls. Used of a gastropod shell.
intransitive verbin·vo·lut·ed, in·vo·lut·ing, in·vo·lutes
Origin of involuteLatin invol&umacron;tus, past participle of involvere, to enwrap; see involve.
The parametric equations of an involute of a circle are
x = r cos &thgr; + r &thgr; sin &thgr;,
y = r sin &thgr; - r &thgr; cos &thgr;.
(comparative more involute, superlative most involute)
(third-person singular simple present involutes, present participle involuting, simple past and past participle involuted)
From Latin involutus.