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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 ?
Another setaceous Salafi punctures Morsi's balloon.
Maxilla a rounded lump 40 [micro]m high, maxillary palpus a slight elevation with 2 setaceous sensilla, and galea a pair of basiconic sensilla.
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.
Deweyanae are lax plants having setaceous bracts, spikes that are usually gynecandrous, distigmatic pistillate flowers, and perigynia that are spongy-based, non-papillate, unwinged at the margins, and relatively long-beaked.
Inflorescence conical, 25 x 12 cm, 3-pinnately compound; primary bracts, the lowest like the upper scape bracts, much exceeding to equaling the branches; the upper much reduced; rose to red; primary branches with a 12 cm long, slender, white floccose peduncle, spreading at ca 90[degrees] from the main axis; secondary branches 2 to 5flowered with the rachis more or less straight, terete, white floccose; floral bracts minute, narrowly triangular to setaceous 13 mm long, white floccose.