An external bristle or
bristle like structure, process or part of an organism.
This over-used anatomical term is simply Latin
for a bristle or a stiff hair, usually the term seta indicate a
slender, bristle-like flexible outgrowth of body or appendage
developed as extensions of the epidermal layer; commonly known
as hairs; But is used in a variety of contexts, not only for
things that look like bristles, but also for things like the
stalk of the sporophyte in mosses, which looks nothing like a
bristle (or, for that matter, a stiff hair).
For example the term setae indicate the bristle-like, fine
spines in the areoles of most Opuntia (
usually borne in loose clusters or close-set pads) thought they
are not the same as the glochids also located in the areoles of
Setate: Having or bearing seta.
Setiferous, setaceous or Setigerous:
Producing or having setae, bristle-like.