Definition of "lowpass" [lowpass]

• An audio filter that discards higher frequencies while preserving lower ones. (noun)

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• "* Anti-alias lowpass filter conjugated with resampler."
• "This work revealed “a clear manifestation of the Medieval Warm Period” between AD 1000 and 1250, the peak warm-season temperature of which “smoothed with a 40-year lowpass Butterworth filter” was clearly higher than it was at the end of the 20th century."
• "While these correlation were performed with raw, unfiltered data, for clarity the tree-ring record in Figure 7B has been smoothed with a 10-yr lowpass filter and is presented in sigma units standard deviations from the chronology mean."