[
US
/ˈspɛktɹəɫ/
]
[ UK /spˈɛktɹəl/ ]
[ UK /spˈɛktɹəl/ ]
ADJECTIVE
-
of or relating to a spectrum
spectral analysis
spectral colors -
resembling or characteristic of a phantom
spiritual tappings at a seance
a ghostly face at the window
spectral emanations
a phantasmal presence in the room
How To Use spectral In A Sentence
- Deuterium is a relatively insensitive nucleus because it has a low gyromagnetic ratio and the spectral intensity is generally spread over an extremely wide frequency range due to the quadrupole interaction.
- We then build a multispectral image consisting of five spectral bands (visible, near-IR, and three thermal IR channels) and use the program for further processing and interpretation.
- Its spectral presence looms over the city, its pointed top a needle to the bubble. Times, Sunday Times
- In this chapter, we give some operator inequalities and norm inequalities by means of spectral decomposition and functional calculus.
- Cross-correlation coefficients computed from comparisons of sonograms reflect differences in the spectral and temporal characteristics of the call, as well as differences in signal-to-noise ratio.
- The frequency spectral analyses show that the second ignition method could weaken and restrain the high frequency vibration, improve the characteristic of vibration in high loading density charge.
- Present castle incumbent Peter Frost-Pennington is a stoic, sensible Scot, who likes to keep an open mind on spectral matters, but readily admits a recent flurry in phantom phenomena has been pretty good for business.
- We have performed side-by-side comparative measurements of solar-UV radiation with spore dosimetry and spectral photometry in several campaigns held at four sites in Japan and Europe.
- The returning light would be detected by an imaging spectrometer to create a spectral image of the apple on a computer screen.
- For narrow spectral bandwidth gratings, dimensional variations must be minimized or compensated, and the grating is apodized by both a.c. and d.c. variations in writing beams at a net constant power.