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involute
[in-vuh-loot, in-vuh-loot, in-vuh-loot]
adjective
intricate; complex.
curled or curved inward or spirally.
Botany.rolled inward from the edge, as a leaf.
Zoology.(of shells) having the whorls closely wound.
noun
Geometry.any curve of which a given curve is the evolute.
verb (used without object)
to roll or curl up; become involute.
to return to a normal shape, size, or state.
involute
adjective
complex, intricate, or involved
botany (esp of petals, leaves, etc, in bud) having margins that are rolled inwards
(of certain shells) closely coiled so that the axis is obscured
noun
geometry the curve described by the free end of a thread as it is wound around another curve, the evolute, such that its normals are tangential to the evolute See also evolute
verb
(intr) to become involute
Other Word Forms
- involutely adverb
- subinvolute adjective
- ˈԱˌܳٱ adverb
- ˌԱˈܳٱ adverb
Word History and Origins
Word History and Origins
Origin of involute1
Example Sentences
Several daguerreotypes here foreground the ornament and patterning of Egyptian buildings; this one captures every edge of the involute roof of a 16th-century mosque, festooned with knotty hearts and flowers.
They were involute, introvert, indirect; they did not like questions and answers.
Lip barely saccate below, tapering and its sides involute above; anther ovate, long-pointed, borne on the base of the very short column, which is continued above the stigma into a conspicuous tapering awl-shaped gland-bearing beak.
Draw setting tangent from “base circle” of involute, at middle of tooth.
The first curve is called the involute of the second.
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