• WordNet 3.6
    • v twirl cause to spin "spin a coin"
    • v twirl turn in a twisting or spinning motion "The leaves swirled in the autumn wind"
    • n twirl the act of rotating rapidly "he gave the crank a spin","it broke off after much twisting"
    • n twirl a sharp bend in a line produced when a line having a loop is pulled tight
    • ***
Webster's Revised Unabridged Dictionary
    • Twirl A twist; a convolution. "Typhon huge, ending in snaky twine ."
    • Twirl The act of twirling; a rapid circular motion; a whirl or whirling; quick rotation.
    • v. t Twirl twẽrl To move or turn round rapidly; to whirl round; to move and turn rapidly with the fingers. "See ruddy maids,
      Some taught with dexterous hand to twirl the wheel."
      "No more beneath soft eve's consenting star
      Fandango twirls his jocund castanet."
    • v. i Twirl To revolve with velocity; to be whirled round rapidly.
    • ***
Century Dictionary and Cyclopedia
    • twirl To cause to revolve rapidly; spin; whirl; turn round and round, usually in an idle, purposeless way; twiddle.
    • twirl To move round; especially, to revolve rapidly; be whirled about.
    • twirl To twine; wind; coil; curl.
    • n twirl A rapid circular motion.
    • n twirl A twist; a convolution; a curl; a flourish.
    • ***
Chambers's Twentieth Century Dictionary
    • v.t Twirl twėrl to turn round rapidly, esp. with the fingers
    • v.i Twirl to turn round rapidly: to be whirled round
    • n Twirl a whirl: a rapid circular motion
    • ***


Webster's Revised Unabridged Dictionary
Cf. AS. þwiril, a churn staff, a stirrer, flail, þweran, āþweran, to agitate, twirl, G. zwirlen, quirlen, querlen, to twirl, to turn round or about, quirl, a twirling stick, OHG. dweran, to twirl, stir. Cf. Trowel


In literature:

Mike was sitting across the room with his back to the wall anxiously twirling his hat round and round.
"A Country Doctor and Selected Stories and Sketches" by Sarah Orne Jewett
Fancy Italian girl won by the swagger twirl Of an Austrian moustache!
"Punch, or The London Charivari, Volume 101, October 31, 1891" by Various
Don Manuel clicked his heels together and twirled his black mustache.
"A Daughter of the Dons" by William MacLeod Raine
He sat, twirling his wine-glass in his fingers.
"Verner's Pride" by Mrs. Henry Wood
For as the fighters trampled to and fro, seeking the better of each other, she twirled near again.
"The Poor Little Rich Girl" by Eleanor Gates
Look at that squirrel who twirls and twirls in his cage.
"Side Lights" by James Runciman
Susan twirled her stocking and went on.
"Susan Clegg and Her Friend Mrs. Lathrop" by Anne Warner
He twirled his moustache slightly and continued to look at Marianne sideways without replying.
"His Excellency the Minister" by Jules Claretie
Twirl the old wheels?
"May-Day and Other Pieces" by Ralph Waldo Emerson
He wore evening dress, with a light cloak over it, and he twirled a stick carelessly between his gloved fingers.
"In Friendship's Guise" by Wm. Murray Graydon

In poetry:

With the dust around them whirling,
And the white, cracked, fevered lips,
And the shuttle's ceaseless twirling,
And the short life's toil-eclipse:
"The Factory Town" by Ernest Jones
The wind steals in and twirls the candle,
The branches heave and brush the wall,
But more than tree or wild wind mutters
This night, this night of all.
"The Call" by John Freeman
Once more the lark with song and speed
Cleaves through the dawn, his hurried bars^;
Fall, like the flute of Ganymede
Twirling and whistling from the stars.
"Spring" by Francis Ledwidge
I love the fitful gust that shakes
The casement all the day,
And from the glossy elm tree takes
The faded leaves away,
Twirling them by the window pane
With thousand others down the lane.
"Autumn" by John Clare
The earth is a place on which England is found,
And you find it however you twirl the globe round;
For the spots are all red and the rest is all grey,
And that is the meaning of Empire Day.
"Songs Of Education: II. Geography" by Gilbert Keith Chesterton
Sae twirl thee round, wheely, I'll sing while I may;
I'll try to be happy the hale o' the day:
If we wadna mak griefs o' bit trisles sae sma',
The warld wad run smoothly roun', roun' wi' us a'.
"Miss Gilpin’s Song" by Susanna Blamire

In news:

Olivia Olinger, a seventh-grader at Calvert Catholic Schools, twirls a flag during the halftime show Friday in the post-season football game between Calvert and McComb.
5th-graders twirl into finals at LAUSD's first dance competition.
S Twirling Association’s National Baton Twirling Competition and they cam home with several trophies.
S Twirling Association's National Baton Twirling Competition held this year in Little Rock, Ark.
Sophia has been twirling for five years and Sage has been twirling for on-and-a-half years.
The world series of baton twirling has taken over South Bend.
You can catch all the twirling for free every day this week from 8:00 am to 7:00 pm at the Joyce Center.
" will be learning basic baton twirling skills and dance," she added.
Give exercise hoops a twirl .
Julia Sawin, 7, of Tracy, just returned from the United States Twirling Association National Championships, where she collected another set of gold medals in recognition of her baton-twirling talent.
First of all, yes, this is a picture of me twirling one of my lightsabers my MANY lightsabers, actually.
Between the twirls and smiles, two little girls have some other moves in mind.
Santa Barbara 's historic fiesta twirls into August.
Baton twirling classes offered.
Rowling's new novel The Casual Vacancy is creating a lot of buzz and a construction worker goes for a twirl.

In science:

The distribution of the matrix is uniform according to the Haar measure. • twirl(rho,[d],[Nit]): Twirls the multi-qudit density matrix rho. d is the dimension of the qudits.
QUBIT4MATLAB V3.0: A program package for quantum information science and quantum optics for MATLAB
The form [rho2,difference]=twirl(rho) gives also the norm of the difference between the original and the twirled state.
QUBIT4MATLAB V3.0: A program package for quantum information science and quantum optics for MATLAB
In Ref. , they consider approximate twirling, which is implemented using an approximate 2design.
Random Quantum Circuits are Approximate 2-designs
However, Definition 2.6, which requires the map to be close to the twirling operation, requires 1-norm convergence (i.e.
Random Quantum Circuits are Approximate 2-designs
Clifford twirls , or 2-designs, play an important role in a number of quantum information protocols. A construction for an approximate Clifford twirl has recently been suggested in .
Parameters of Pseudo-Random Quantum Circuits