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spectra

spec·tra
S s

Transcription

    • US Pronunciation
    • US IPA
    • UK Pronunciation
    • UK IPA
    • [spek-truh]
    • /ˈspɛk trə/
    • /ˈspek.trəm/
    • US Pronunciation
    • US IPA
    • [spek-truh]
    • /ˈspɛk trə/

Definitions of spectra word

  • noun spectra a plural of spectrum. 1
  • noun plural spectra Physics. an array of entities, as light waves or particles, ordered in accordance with the magnitudes of a common physical property, as wavelength or mass: often the band of colors produced when sunlight is passed through a prism, comprising red, orange, yellow, green, blue, indigo, and violet. this band or series of colors together with extensions at the ends that are not visible to the eye, but that can be studied by means of photography, heat effects, etc., and that are produced by the dispersion of radiant energy other than ordinary light rays. Compare band spectrum, electromagnetic spectrum, mass spectrum. 1
  • noun plural spectra a broad range of varied but related ideas or objects, the individual features of which tend to overlap so as to form a continuous series or sequence: the spectrum of political beliefs. 1
  • noun spectra Spectra is a plural form of spectrum. 0
  • abbreviation SPECTRA spectrum 0

Information block about the term

Origin of spectra

First appearance:

before 1605
One of the 40% oldest English words
1605-15; < Latin: appearance, form, equivalent to spec(ere) to look, regard + -trum instrumental noun suffix

Historical Comparancy

Parts of speech for Spectra

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation

spectra popularity

A common word. It’s meaning is known to most children of preschool age. About 85% of English native speakers know the meaning and use the word.
Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

spectra usage trend in Literature

This diagram is provided by Google Ngram Viewer

Synonyms for spectra

noun spectra

Top questions with spectra

  • what is spectra?
  • how is emission spectra produced?
  • how to read ir spectra?

See also

Matching words

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