DeMundo 144:2 :ܙܡܡܐ ܡܕܡ ܘܩܠܐ ܕܠܐ ܒܙܥܘܪ ܥ݁ܒܕ ܠܗ݂‏ : it produces a certain ringing and not small sound
See the entire entry for zmām, zmāmā v.n. buzzing