different between aperture vs bend

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.

English

Etymology

From Middle English benden, from Old English bendan (“to bind or bend (a bow), fetter, restrain”), from Proto-Germanic *bandijan? (“to bend”), from Proto-Indo-European *b?end?- (“to bind, tie”). Cognate with Middle High German benden (“to fetter”), Danish bænde (“to bend”), Norwegian bende (“to bend”), Faroese benda (“to bend, inflect”), Icelandic benda (“to bend”). More at band.

Pronunciation

• enPR: ?nd, IPA^(key): /b?nd/
• (pin–pen merger) IPA^(key): /b?nd/
• Rhymes: -?nd

Verb

bend (third-person singular simple present bends, present participle bending, simple past and past participle bent or (archaic) bended)

1. (transitive) To cause (something) to change its shape into a curve, by physical force, chemical action, or any other means.

2. (intransitive) To become curved.

3. (transitive) To cause to change direction.
4. (intransitive) To change direction.

5. (intransitive) To be inclined; to direct itself.
6. (intransitive, usually with "down") To stoop.

7. (intransitive) To bow in prayer, or in token of submission.
   • 1798, Samuel Taylor Coleridge, The Rime of the Ancient Mariner

     Each to his great Father bends.

8. (transitive) To force to submit.
9. (intransitive) To submit.

10. (transitive) To apply to a task or purpose.
11. (intransitive) To apply oneself to a task or purpose.

12. (transitive) To adapt or interpret to for a purpose or beneficiary.
13. (transitive, nautical) To tie, as in securing a line to a cleat; to shackle a chain to an anchor; make fast.

14. (transitive, music) To smoothly change the pitch of a note.

15. (intransitive, nautical) To swing the body when rowing.

Derived terms

Translations

Noun

bend (plural bends)

1. A curve.
   • 1968, Johnny Cash, Folsom Prison Blues

     I hear the train a comin'/It's rolling round the bend

2. Any of the various knots which join the ends of two lines.
3. (in the plural, medicine, underwater diving, with the) A severe condition caused by excessively quick decompression, causing bubbles of nitrogen to form in the blood; decompression sickness.

4. (heraldry) One of the honourable ordinaries formed by two diagonal lines drawn from the dexter chief to the sinister base; it generally occupies a fifth part of the shield if uncharged, but if charged one third.
5. (obsolete) Turn; purpose; inclination; ends.
   • 1608, John Fletcher, The Faithful Shepherdess, Act 1, Scene 3

     Farewell, poor swain; thou art not for my bend.

6. In the leather trade, the best quality of sole leather; a butt; sometimes, half a butt cut lengthwise.
7. (mining) Hard, indurated clay; bind.
8. (nautical, in the plural) The thickest and strongest planks in a ship's sides, more generally called wales, which have the beams, knees, and futtocks bolted to them.
9. (nautical, in the plural) The frames or ribs that form the ship's body from the keel to the top of the sides.

   the midship bends

10. (music) A glissando, or glide between one pitch and another.

Derived terms

Translations

Related terms

• bent

References

• The Manual of Heraldry, Fifth Edition, by Anonymous, London, 1862, online at [1]

Anagrams

• D. Neb.

Albanian

Etymology

From Proto-Indo-European *band (“drop”). Compare Phrygian ???? (bedu, “water”), Sanskrit ?????? (bindú, “drop”), Middle Irish banna, baina (“drop”) and possibly Latin F?ns Bandusiae.

Noun

bend m

1. pond, water reservoir
2. idle or provocative words
3. servant, henchman

Related terms

• përbindësh

Northern Kurdish

Noun

bend ?

1. slave

Norwegian Nynorsk

Etymology

From benda, bende (“to bend”).

Noun

bend n (definite singular bendet, indefinite plural bend, definite plural benda)

1. a bend
2. a bent position
3. a butt on a thick rope

Participle

bend (neuter bendt, definite singular and plural bende)

1. past participle of benda and bende

Verb

bend

1. imperative of benda and bende

References

• “bend” in The Nynorsk Dictionary.

Old Norse

Participle

bend

1. inflection of bendr:
   1. strong feminine nominative singular
   2. strong neuter nominative/accusative plural

Verb

bend

1. second-person singular active imperative of benda

Portuguese

Etymology

Borrowed from English bend.

Pronunciation

• (Brazil) IPA^(key): /?b?d??/

Noun

bend m (plural bends)

1. (music, electric guitar) bend (change in pitch produced by bending a string)

Serbo-Croatian

Etymology

From English band.

Pronunciation

• IPA^(key): /bênd/

Noun

b?nd m (Cyrillic spelling ?????)

1. (music) band (group of musicians)

Declension