band-pass filter

[ band-pas, -pahs ]

noun

, Electricity, Electronics.

1. a filter that attenuates all frequencies except those of a specific band, which it amplifies.

band-pass filter

noun

1. electronics a filter that transmits only those currents having a frequency lying within specified limits Compare high-pass filter low-pass filter
2. an optical device, consisting of absorbing filters, for transmitting electromagnetic waves of predetermined wavelengths

Word History and Origins

Origin of band-pass filter¹

First recorded in 1920–25