fricative /ˈfɹɪkətɪv/adjective 1noun 1forms 3 adjective1 •produced by air flowing through a restriction in the oral cavity. noun1 •Any of several speech sounds produced by air flowing through a constriction in the oral cavity and typically producing a sibilant, hissing, or buzzing quality; a fricative consonant.Watt listened for a time, for the voice was far from unmelodious. The fricatives in particular were pleasing. — 1953 formsfricatives · more fricative · most fricative