спектрspectrum of turned partsspectrum of workpiecesamplitude spectrumamplitude density spectrumcomponent spectrumcontinuous spectrumcontrol spectrumdiscrete spectrumexcitation spectrumFourier spectrumfrequency spectrumgear mesh excitation spectrummachining spectrumnatural frequency spectrumnoise power spectrumparts spectrumphase spectrumpower spectrumpower density spectrumprismatic part spectrumrotation part spectrumrotational part spectrumsize spectrumspatial excitation spectrumvibration spectrumvibrational spectrum ...
1. физ. спектр solar spectrum —- спектр Солнца, солнечный спектр 2. спец. диапазон 3. (все) разнообразие; размах, широкий диапазон the spectrum of political beliefs —- самые разнообразные политические воззрения 4. изображение, образ 5. привидение, призрак 6. редк. образ, видение ...
n. (pl. spectra) 1 the band of colours, as seen in a rainbow etc., arranged in a progressive series according to their refrangibility or wavelength. 2 the entire range of wavelengths of electromagnetic radiation. 3 a an image or distribution of parts of electromagnetic radiation arranged in a progressive series according to wavelength. b this as characteristic of a body or substance when emitting or absorbing radiation. 4 a similar image or distribution of energy, mass, etc., arranged according to frequency, charge, etc. 5 the entire range or a wide range of anything arranged by degree or quality etc. 6 (in full ocular spectrum) an after-image. Phrases and idioms spectrum (or spectral) analysis chemical analysis by means of a spectroscope. Etymology: L, = image, apparition f. specere look ...
Толковый словарь английского языка Oxford English Reference
noun (plural spectra or ~s) Etymology: New Latin, from Latin, appearance — more at specter Date: 1671 1. a. a continuum of color formed when a beam of white light is dispersed (as by passage through a prism) so that its component wavelengths are arranged in order b. any of various continua that resemble a color ~ in consisting of an ordered arrangement by a particular characteristic (as frequency or energy): as (1) electromagnetic ~ (2) radio ~ (3) the range of frequencies of sound waves (4) mass ~ c. the representation (as a plot) of a ~ 2. a. a continuous sequence or range a wide ~ of interests opposite ends of the political ~ b. kinds of organisms associated with a particular situation (as an environment) c. a range of effectiveness against pathogenic organisms an antibiotic with a broad ~ ...
(spectra, or spectrums) 1. The spectrum is the range of different colours which is produced when light passes through a glass prism or through a drop of water. A rainbow shows the colours in the spectrum. N-SING: the N 2. A spectrum is a range of a particular type of thing. Politicians across the political spectrum have denounced the act... The term ‘special needs’ covers a wide spectrum of problems. N-COUNT: usu sing, with supp 3. A spectrum is a range of light waves or radio waves within particular frequencies. Vast amounts of energy, from X-rays right through the spectrum down to radio waves, are escaping into space... N-COUNT ...
Collins COBUILD Advanced Learner's English Dictionary
~ n plural spectra, 1 a complete range of opinions, ideas, situations etc, going from one extreme to its opposite (Our speakers tonight come from both ends of the political spectrum.) + of (a wide spectrum of opinion) 2 the set of bands of coloured light into which a beam of light may be separated by passing it through a prism 3 a complete range of radio, sound etc waves (the electromagnetic spectrum) ...
- 1611, "apparition, specter," from L. spectrum "appearance, image, apparition," from specere "to look at, view." Meaning "band of colors formed from a beam of light" first recorded 1671. Spectroscope is from 1861. ...