#1
spirant n. [
fricative consonant, fricative] a continuant consonant produced by breath moving against a narrowing of the vocal tract
. wn #2
spirant s. [
fricative, continuant, sibilant, strident] of speech sounds produced by forcing air through a constricted passage (as 'f', 's', 'z', or 'th' in both 'thin' and 'then')
. wn