in volute

in·vo·lute

[adj., n. in-vuh-loot; v. in-vuh-loot, in-vuh-loot] adjective, noun, verb, in·vo·lut·ed, in·vo·lut·ing.
adjective
1.
intricate; complex.
2.
curled or curved inward or spirally.
3.
Botany. rolled inward from the edge, as a leaf.
4.
Zoology. (of shells) having the whorls closely wound.
noun
5.
Geometry. any curve of which a given curve is the evolute.
00:10
In volute is always a great word to know.
So is bezoar. Does it mean:
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
verb (used without object)
6.
to roll or curl up; become involute.
7.
to return to a normal shape, size, or state.

Origin:
1655–65; < Latin involūtus (past participle of involvere to roll up, wrap, cover), equivalent to in- in-2 + volū- (variant stem of volvere to roll) + -tus past participle suffix; cf. involve

in·vo·lute·ly, adverb
sub·in·vo·lute, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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World English Dictionary
involute
 
adj
1.  complex, intricate, or involved
2.  botany (esp of petals, leaves, etc, in bud) having margins that are rolled inwards
3.  (of certain shells) closely coiled so that the axis is obscured
 
n
4.  geometry See also evolute 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
 
vb
5.  (intr) to become involute
 
[C17: from Latin involūtus, from involvere; see involve]
 
'involutely
 
adv
 
invo'lutedly
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
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