different between twirl vs aperture

English

Etymology

Of Scandinavian origin, akin to Norwegian Nynorsk tvirla, Old High German dweran (German zwirlen, quirlen) and Icelandic þyrill Or, an alteration of tirl (“to twist”), with influence from whirl.; all from Proto-Germanic *þweran? (“to stir”).

Pronunciation

• (UK) IPA^(key): /?tw??(?)l/
• Rhymes: -??(r)l

Noun

twirl (plural twirls)

1. A movement where a person spins round elegantly; a pirouette.
2. Any rotating movement; a spin.

   The conductor gave his baton a twirl, and the orchestra began to play.

3. A little twist of some substance; a swirl.
   • 1969, The South African Sugar Journal (volume 53, page 51)

     Place the cream in a piping bag with a fairly large star pipe attached, fill each tartlet with a twirl of cream and top with a strawberry.

4. (slang) A prison guard.

   Synonym: screw

   • 1958, Frank Norman, Bang to rights: an account of prison life (page 67)

     Which was in the main childishness and pettiness, the reason for this was that most of the twirls and the governors had […]

Translations

Verb

twirl (third-person singular simple present twirls, present participle twirling, simple past and past participle twirled)

1. (intransitive) To perform a twirl.
2. (transitive) To rotate rapidly.
   • 1753, Robert Dodsley, Agriculture

     See ruddy maids, / Some taught with dexterous hand to twirl the wheel.
3. (transitive) To twist round.
4. (baseball) To pitch.
   • 1949, Mark Raymond Murnane, Ground Swells: Of Sailors, Ships, and Shellac (page 302)

     When the batteries were announced, however, and Herb Pennock of the Boston Red Sox, probably the best pitcher in all baseballdom, was named to twirl for the invading team, we felt we had been tricked.

Derived terms

• twirl one's moustache

Translations

References

English

Etymology

Borrowed from Latin apert?ra (“opening”), from apertus, past participle of aper?re (“to open, uncover”), opposed to oper?re (“to close, cover”). See aperient. Doublet of overture.

Pronunciation

• (Received Pronunciation) IPA^(key): /?æp.?.t??(?)/, /?æp.?.tj??(?)/
• (US) IPA^(key): /?æp.?.t??/
• Hyphenation: ap?er?ture

Noun

aperture (plural apertures)

1. A small or narrow opening, gap, slit, or hole.
   • 1860, Samuel Hannaford, Sea and River-side Rambles in Victoria Chapter 7

     In the centre of the fleshy membrane is an aperture leading into a deep cavity, at the bottom of which is placed a prominent piston that may be retracted by muscular fibres provided for the purpose.
2. (optics) Something which restricts the diameter of the light path through one plane in an optical system.
3. (astronomy, photography) The diameter of the aperture (in the sense above) which restricts the width of the light path through the whole system. For a telescope, this is the diameter of the objective lens.

4. (spaceflight, communication) The (typically) large-diameter antenna used for receiving and transmitting radio frequency energy containing the data used in communication satellites, especially in the geostationary belt. For a comsat, this is typically a large reflective dish antenna; sometimes called an array.
5. (mathematics, rare, of a right circular cone) The maximum angle between the two generatrices.

   If the generatrix makes an angle ? to the axis, then the aperture is 2?.

Usage notes

The aperture of microscopes is often expressed in degrees, called also the angular aperture, which signifies the angular breadth of the pencil of light which the instrument transmits from the object or point viewed; as, a microscope of 100° aperture.

Derived terms

Related terms

Translations

Further reading

• aperture in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• aperture in The Century Dictionary, New York, N.Y.: The Century Co., 1911.

French

Etymology

Borrowed from Latin apert?ra (“opening”). Doublet of ouverture.

Pronunciation

• IPA^(key): /a.p??.ty?/

Noun

aperture f (uncountable)

1. (phonetics, phonology) opening, openness, aperture

Related terms

• apéritif
• ouvrir

Further reading

• “aperture” in Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

Italian

Pronunciation

• Rhymes: -ure

Noun

aperture f

1. plural of apertura

Anagrams

• reputare
• reputerà

Latin

Participle

apert?re

1. vocative masculine singular of apert?rus

Spanish

Verb

aperture

1. First-person singular (yo) present subjunctive form of aperturar.
2. Formal second-person singular (usted) present subjunctive form of aperturar.
3. Third-person singular (él, ella, also used with usted^?) present subjunctive form of aperturar.
4. Formal second-person singular (usted) imperative form of aperturar.