The Word Spectrum Comes From a Latin Word Meaning What

English [edit]

Etymology [edit]

From Latin spectrum ( " appearance, image, apparition " ), from speciō ( " look at, view " ). Doublet of specter. See also scope.

Pronunciation [edit]

• ( Canada, UK ) IPA^(key): /ˈspektɹəm/
• ( US ) IPA^(key): /ˈspɛkt(ʃ)ɹəm/
• Rhymes: -ɛktɹəm

Noun [edit]

spectrum (plural spectra or spectrums)

1. A range; a continuous, infinite, one-dimensional set, possibly bounded by extremes.

   • 2012 November 7, Matt Bai, "Winning a Second Term, Obama Will Confront Familiar Headwinds", in New York Times‎^[1]:

     As Mr. Obama prepared to take the oath, his approval rating touched a remarkable 70 percent in some polling — a reflection of good will across the political spectrum.

2. Specifically, a range of colours representing light (electromagnetic radiation) of contiguous frequencies; hence electromagnetic spectrum, visible spectrum, ultraviolet spectrum, etc. [from later 17th c.]
   • 2010 October 30, Jim Giles, Jammed!, in New Scientist,

     Current 3G technologies can send roughly 1 bit of data - a one or a zero - per second over each 1 Hz of spectrum that the operator owns.

3. ( psychology, education ) The autism spectrum.
4. ( chemistry ) The pattern of absorption or emission of radiation produced by a substance when subjected to energy (radiation, heat, electricity, etc.).
5. ( mathematics, linear algebra ) The set of eigenvalues of a matrix.
6. ( mathematics, functional analysis ) Of a bounded linear operator A, the set of scalar values λ such that the operator A—λI, where I denotes the identity operator, does not have a bounded inverse; intended as a generalisation of the linear algebra sense.
7. ( abstract algebra, algebraic geometry ) The set, denoted Spec(R), of all prime ideals of a given ring R, commonly augmented with a Zariski topology and considered as a topological space.

   Hyponym: Stone space

8. ( obsolete ) Specter, apparition. [from early 17th c.]
9. The image of something seen that persists after the eyes are closed.

Derived terms [edit]

• cepstrum
• light spectrum
• spectro-
• spectrum disorder
• political spectrum

[edit]

• spectral

Translations [edit]

range of colors

Afrikaans: spektrum Albanian: spektri Arabic: طَيْف‎ m ( ṭayf ) Armenian: սպեկտր  (hy) ( spektr ) Basque: espektro Bulgarian: спектър m ( spektǎr ) Catalan: espectre  (ca) m Chinese: Cantonese: 光譜, 光谱 ( gwong1 pou2 ) Hakka: 光譜, 光谱 ( kông-phú ) Mandarin: 光譜  (zh), 光谱  (zh) ( guāngpǔ ) Czech: spektrum n Danish: spektrum n , spekter n Dutch: spectrum  (nl) n Esperanto: spektro Estonian: spekter Finnish: kirjo  (fi), spektri  (fi) French: spectre  (fr) m Galician: espectro m Georgian: სპექტრი ( sṗekṭri ) German: Spektrum  (de) n Greek: φάσμα  (el) n ( fásma ), φωτόφασμα n ( fotófasma ) Hebrew: ספקטרום‎ (he) ( spéktrum ) Hungarian: spektrum  (hu), színkép  (hu) Irish: speictream m Italian: spettro  (it) Japanese: スペクトル  (ja) ( supekutoru ), 分光 ( ぶんこう, bunkō )

Korean: 분광(分光)  (ko) ( bun'gwang ) Kurdish: Northern Kurdish: şebeng f Latvian: spektrs m Lithuanian: spektras m Macedonian: спектар m ( spektar ) Maori: tūāwhiorangi Norwegian: Bokmål: spektrum n , spekter n Nynorsk: spektrum n , spekter n Persian: طیف‎ (fa) ( teyf ), بیناب‎ (fa) ( bīnāb ) Polish: widmo  (pl) n Portuguese: espectro  (pt) m ( Brazil, Portugal ), espetro m ( Portugal ) Romanian: spectru  (ro) n Russian: спектр  (ru) m ( spektr ) Serbo-Croatian: Cyrillic: спектар m Roman: spektar  (sh) m Slovak: spektrum n Slovene: spekter  (sl) m Spanish: espectro  (es) m Swedish: spektrum  (sv) n Tagalog: balangaw  (tl) Telugu: వర్ణమాల  (te) ( varṇamāla ) Thai: สเปกตรัม Turkish: tayf  (tr) Ukrainian: спектр m ( spektr ) Vietnamese: quang phổ  (vi) (光譜) Volapük: späktrum  (vo), kölaspäktrum

chemistry: a pattern of absorption or emission of radiation

linear algebra: set of scalar values

The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout § Translations.

Translations to be checked

Anagrams [edit]

• cepstrum, crumpets

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Dutch [edit]

Etymology [edit]

From Latin spectrum ( " appearance, image, apparition " ), from speciō ( " look at, view " ).

Pronunciation [edit]

Noun [edit]

spectrum n (plural spectrums or spectra, diminutive spectrumpje n )

1. spectrum

Derived terms [edit]

• spectraal
• spectroscoop

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Latin [edit]

Etymology [edit]

From Proto-Italic *spektrom, from Proto-Indo-European *spéḱtrom.

Pronunciation [edit]

• ( Classical ) IPA^(key): /ˈspek.trum/, [ˈs̠pɛkt̪rʊ̃ˑ]
• ( Ecclesiastical ) IPA^(key): /ˈspek.trum/, [ˈspɛkt̪rum]

Noun [edit]

spectrum n (genitive spectrī); second declension

1. appearance, image
2. apparition, specter

Declension [edit]

Second-declension noun (neuter).

Case	Singular	Plural
Nominative	spectrum	spectra
Genitive	spectrī	spectrōrum
Dative	spectrō	spectrīs
Accusative	spectrum	spectra
Ablative	spectrō	spectrīs
Vocative	spectrum	spectra

[edit]

• speciō
• spectiō
• spectō

Descendants [edit]

• Catalan: espectre
• Dutch: spectrum
• English: spectre, specter; spectrum
• French: spectre
• German: Spektrum
• Irish: speictream
• Italian: spettro
• Portuguese: espectro
• Romanian: spectru
• Russian: спектр ( spektr )
• Spanish: espectro
• Swedish: spektrum

References [edit]

• spectrum in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• spectrum in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• spectrum in Charles du Fresne du Cange's Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• spectrum in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette

The Word Spectrum Comes From a Latin Word Meaning What

Source: https://en.wiktionary.org/wiki/spectrum

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