different between septum vs aperture
septum
English
Alternative forms
- saeptum, sæptum (obsolete)
Etymology
Borrowed from Latin s?ptum (“enclosure, wall, fence”).
Pronunciation
- IPA(key): /?s?p.t?m/
- Rhymes: -?pt?m
Noun
septum (plural septa)
- (biology) A wall separating two cavities; a partition.
- Synonym: dissepiment
- (anatomy) Ellipsis of nasal septum: the cartilaginous center wall of the nose separating the two nostrils.
- (anatomy) Either of the two walls that separate the atria or ventricles of the heart into left and right chambers.
- (botany) A partition that separates the cells of a fruit.
- (mycology) A partition that separates the cells of a (septated) fungus.
- (zoology) One of the radial calcareous plates of a coral.
- (zoology) One of the transverse partitions dividing the shell of a mollusk, or of a rhizopod, into several chambers.
- (zoology) One of the transverse partitions dividing the body cavity of an annelid.
- (colloquial) Ellipsis of septum ring or septum piercing.
Hyponyms
- nasal septum
- interventricular septum
- septum pellucidum
Derived terms
Translations
References
- “septum”, in Lexico, Dictionary.com; Oxford University Press, 2019–present.
- “septum”, in Merriam–Webster Online Dictionary, (Please provide a date or year).
Anagrams
- spetum
Latin
Pronunciation
- (Classical) IPA(key): /?se?p.tum/, [?s?e?pt????]
- (Ecclesiastical) IPA(key): /?sep.tum/, [?s?pt?um]
Noun
s?ptum n (genitive s?pt?); second declension
- Alternative form of saeptum.
Descendants
? English: septum
septum From the web:
- what septum means
- what septum ring should i get
- what septum piercing means
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- what's septum piercing
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- what's septum ring
- what septum in a heart
aperture
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)
- 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.
- 1860, Samuel Hannaford, Sea and River-side Rambles in Victoria Chapter 7
- (optics) Something which restricts the diameter of the light path through one plane in an optical system.
- (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.
- (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.
- (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)
- (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
- plural of apertura
Anagrams
- reputare
- reputerà
Latin
Participle
apert?re
- vocative masculine singular of apert?rus
Spanish
Verb
aperture
- First-person singular (yo) present subjunctive form of aperturar.
- Formal second-person singular (usted) present subjunctive form of aperturar.
- Third-person singular (él, ella, also used with usted?) present subjunctive form of aperturar.
- Formal second-person singular (usted) imperative form of aperturar.
aperture From the web:
- what aperture to use
- what aperture lets in more light
- what aperture to use for landscape
- what aperture blurs the background
- what aperture lets in the least light
- what aperture for portraits
- what aperture to use for family portraits
- what aperture for family portraits
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