EVOLUTING

EVOLUTE

Ev"o*lute, n. Etym: [L. evolutus unrolled, p. p. of evolvere. See Evolve.] (Geom.)

Definition: A curve from which another curve, called the involute or evolvent, is described by the end of a thread gradually wound upon the former, or unwound from it. See Involute. It is the locus of the centers of all the circles which are osculatory to the given curve or evolvent.

Note: Any curve may be an evolute, the term being applied to it only in its relation to the involute.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

30 May 2025

FOREHAND

(noun) (sports) a return made with the palm of the hand facing the direction of the stroke (as in tennis or badminton or squash)


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Coffee Trivia

In 1884, Angelo Moriondo of Turin, Italy, demonstrated the first working example of an espresso machine.

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