knife pleat

English Thesaurus

1. a single pleat turned in one direction (noun.artifact)

hypernym	:	plait, pleat,
definition	:	any of various types of fold formed by doubling fabric back upon itself and then pressing or stitching into shape (noun.artifact)

hyponym	:	sunburst pleat, sunray pleat,
definition	:	knife pleat cut on the bias to produce a flared effect (noun.artifact)