Band-pass filter
a filter that attenuates all frequencies except those of a specific band, which it amplifies.
noun
(electronics) a filter that transmits only those currents having a frequency lying within specified limits compare high-p-ss filter, low-p-ss filter
an optical device, consisting of absorbing filters, for transmitting electromagnetic waves of predetermined wavelengths
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a small flag or streamer fastened to a lance, masthead, etc. a narrow scroll, usually bearing an inscription. (especially in renaissance architecture) a sculptured band, as on a building, adapted to receive an inscription. historical examples corti made the p-ssage safely, and in the road beyond the moat halted, and drove the staff of his […]
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a concave, acoustically resonant structure at the back of an outdoor bandstand.
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an optical spectrum consisting of groups of closely sp-ced spectral lines, characteristic of molecules. noun a spectrum consisting of a number of bands of closely sp-ced lines that are -ssociated with emission or absorption of radiation by molecules