different between loophole vs aperture

English

Etymology

From Middle English loupe (“opening in a wall”) +? hole, from a Germanic source. Compare Medieval Latin loupa, lobia and Middle Dutch lupen (“to watch”).

Pronunciation

• (Received Pronunciation) IPA^(key): /?lu?ph??l/
• (General American) IPA^(key): /?lupho?l/
• Hyphenation: loop?hole

Noun

loophole (plural loopholes)

1. (historical) A slit in a castle wall; today, any similar window for shooting a ranged weapon or letting in light.
   • 1719, Daniel Defoe, Robinson Crusoe:

     ... and having a fair loophole, as it were, from a broken hole in the tree, he took a sure aim, without being seen, waiting till they were within about thirty yards of the tree, so that he could not miss.

   • 1809, Maria Edgeworth, The Absentee:

     There was a loophole in this wall, to let the light in, just at the height of a person's head, who was sitting near the chimney.
2. (figuratively) A method of escape, especially an ambiguity or exception in a rule or law that can be exploited in order to avoid its effect.

Derived terms

• lo mein loophole

Translations

Verb

loophole (third-person singular simple present loopholes, present participle loopholing, simple past and past participle loopholed)

1. (military, transitive) To prepare a building for defense by preparing slits or holes through which to fire on attackers
2. (transitive) To exploit (a law, etc.) by means of loopholes.
   • 2005, Deborah Rhode, David Luban, Legal Ethics Stories

     De-moralizing the subject can be, quite simply, demoralizing, as stirring statements of ideals turn into persnickety rules with exceptions crying out to be loopholed.

Further reading

• loophole on Wikipedia.Wikipedia
• loophole (firearm) on Wikipedia.Wikipedia

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.