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单词 spectrum
释义
spectrum
(once / 1331 pages)
n

A spectrum is a broad range of similar things or qualities. Like the wide spectrum of political beliefs in this country, ranging anywhere from super conservative to uber-liberal and everything in between.
Our modern definition of spectrum started out in the 1600s, when scientists used it to refer to the band of colors formed by a beam of light, like a rainbow. In physics, it’s a word that describes the distribution of something, like energy or atomic particles. We still use those scientific meanings today, but spectrum can also apply to non-science related groupings or ranges of related things.
WORD FAMILY
spectrum: spectra, spectrums
USAGE EXAMPLES
And this year, the lab started a partnership with Bellevue College’s Autism Spectrum Navigators program, and is offering students with autism a chance to intern.
Seattle Times(Jan 02, 2017)
The statement reaffirmed Washington’s “ironclad commitment” to defend its allies, using “the full spectrum of US extended deterrence capabilities.”
The Guardian(Jan 01, 2017)
She applauds trans activists for adopting the idea that “gender is fluid and on a spectrum.”
New York Times(Dec 31, 2016)
1n a broad range of related objects or values or qualities or ideas or activities
Hyper
ambit, compass, orbit, range, reach, scope
an area in which something acts or operates or has power or control: "the range of a supersonic jet"
2n an ordered array of the components of an emission or wave
Hypo|Hyper
absorption spectrum
the spectrum of electromagnetic radiation that has passed through a medium that absorbed radiation of certain wavelengths
action spectrum
the efficiency with which electromagnetic radiation produces a photochemical reaction plotted as a function of the wavelength of the radiation
atomic spectrum
(physics) a spectrum of radiation caused by electron transitions within an atom; the series of spectrum lines is characteristic of the element
electromagnetic spectrum
the entire frequency range of electromagnetic waves
emission spectrum
spectrum of electromagnetic radiation emitted by a self-luminous source
infrared spectrum
the spectrum of infrared radiation
line spectrum
a spectrum in which energy is concentrated at particular wavelengths; produced by excited atoms and ions as they fall back to a lower energy level
mass spectrum
a distribution of ions as shown by a mass spectrograph or a mass spectrometer
microwave spectrum
the part of the electromagnetic spectrum corresponding to microwaves
radio spectrum, radio-frequency spectrum
the entire spectrum of electromagnetic frequencies used for communications; includes frequencies used for radio and radar and television
acoustic spectrum, sound spectrum
the distribution of energy as a function of frequency for a particular sound source
ultraviolet spectrum
the spectrum of ultraviolet radiation
color spectrum, visible spectrum
the distribution of colors produced when light is dispersed by a prism
speech spectrum
the average sound spectrum for the human voice
array
an orderly arrangement
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更新时间:2025/3/22 13:56:58