HyperDic

English > 1 sense of the expression hairy tongue:
NOUNstatehairy tongue, furry tongue, black tonguea benign side effect of some antibiotics
English > hairy tongue: 1 sense > noun 1, state
MeaningA benign side effect of some antibiotics; dark overgrowth of the papillae of the tongue.
Synonymsfurry tongue, black tongue
Broaderside effectA secondary and usually adverse effect of a drug or therapy