low frequency lowf·re·quency uncommon noun 1. 30 to 300 kilohertz Synonymslow frequencyLF 2. a pitch that is perceived as below other pitches Synonymslow pitchlow frequency Antonymshigh pitch Related words Broader terms pitchradio frequency Narrower terms deepnessaltobass Parts electromagnetic spectrum WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
