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1. Having or consisting of bristles; bristly: a setaceous moth.
2. Resembling bristles or a bristle: setaceous whiskers.


(sɪˈteɪ ʃəs)

1. bristlelike.
2. having bristles.
[1655–65; < New Latin sētāceus. See seta, -aceous]
se•ta′ceous•ly, adv.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.setaceous - having or covered with protective barbs or quills or spines or thorns or setae etc.setaceous - having or covered with protective barbs or quills or spines or thorns or setae etc.; "a horse with a short bristly mane"; "bristly shrubs"; "burred fruits"; "setaceous whiskers"
armed - (used of plants and animals) furnished with bristles and thorns
References in periodicals archive ?
Pronotum rounded laterally, barely oblong or even transverse, disk uniformly convex, with dense punctuation, and dense adherent and setaceous erect hairs.
Another setaceous Salafi punctures Morsi's balloon.
1st stage larva: Brown and is very active, setaceous form having ten prominent abdominal segments.
7 Hairs of the sterile lemma of two types, the first type yellow to gold, glassy, setaceous with an acute apex, up to 0.
Maxilla a rounded lump 40 [micro]m high, maxillary palpus a slight elevation with 2 setaceous sensilla, and galea a pair of basiconic sensilla.
Antenna moderately short, weakly setaceous, with 34 flagellomeres, the median ones almost quadrate.
Leaves odd pinnate, petioles 3-8 cm long; leaflets 5-9 paired, elliptic to obovate, 2-4 cm long, pubescent both surfaces with subappressed hairs; stipules setaceous, to 1 cm long, persistent.