Small, bristle-like projection articulating with or extending through cuticle. According to shape one may distinguish brush, cuspidate, feathered, hamate, non-plumose, pappose, plumodenticulate, plumose, serrate, setose, simple, triserrate, and triserrulate setae.
(M. Stachowitsch, 1992)

Alternative forms for seta : setaceous, setae, setal.