FWHM(redirected from Full width at half maximum)
Also found in: Acronyms, Encyclopedia, Wikipedia.
abbreviation for full-width half maximum.
full width half maximum,
The width of a peak or the bandpass of an emission or absorption spectrum in a laboratory photometer or spectrophotometer. When combined with other characteristics of the device, this can be used to predict suitability of the photometer or spectrophotometer for specific applications and measurements.