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

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(sɪˈteɪ ʃəs)

1. bristlelike.
2. having bristles.
[1655–65; < New Latin sētāceus. See seta, -aceous]
se•ta′ceous•ly, adv.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Other characters helpful for recognition include: small body size (1 - 6 mm long from clypeus to elytral apex); body generally elongate-cylindrical to elongate-flattened, subglabrous to setaceous; head prognathous, exposed from above; antennae usually not concealed from above, widely separated, usually with an abrupt 1 - 2 segmented antennal club (not abrupt in Crowsonius Pakaluk & Slipinski and some Leptipsius Casey), never 3 segmented; pronotum variable; mesocoxal cavities open; elytra with strong puncture rows or with dense, confused punctation; abdominal ventrite 1 usually as long as 2 - 4 combined; and pygidium well-sclerotized, punctured (Bousquet 2009, McElrath et al.
Pronotum rounded laterally, barely oblong or even transverse, disk uniformly convex, with dense punctuation, and dense adherent and setaceous erect hairs.
Leaf pubescence is slight, setaceous. The blossoms are monoecious.
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 0.8 mm long, mixed with the second type which are shorter, whitish and more delicate with bulbous tips 7 Hairs of the sterile lemma of one kind with bulbous tips.
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.