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n. pl. se·tae (-tē)
1. A stiff hair, bristle, or bristlelike process or part on an organism, especially an invertebrate.
2. The stalk of a moss or liverwort capsule.

[Latin saeta, sēta, bristle.]

se′tal (sēt′l) adj.
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.


n, pl -tae (-tiː)
1. (Biology) (in invertebrates and some plants) any bristle or bristle-like appendage
2. (Botany) (in mosses) the stalk of the sporophyte that bears the capsule
[C18: from Latin]
setaceous adj
seˈtaceously adv
ˈsetal adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈsi tə)

n., pl. -tae (-tē).
a stiff hair; bristle or bristlelike part.
[1785–95; < Latin sēta, saeta bristle]
se′tal, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.seta - stalk of a moss capsule
podetium - an organ or body resembling a stalk; especially the outgrowth of the thallus of certain lichens on which the ascocarp is borne
2.seta - a stiff hair or bristle
hair - a filamentous projection or process on an organism
chaeta - a stiff chitinous seta or bristle especially of an annelid worm
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
This new species is unique in this genus by the combinations of having 5 pairs of long setae on pronotum, the ultrashort chapped craspedum on posterior margin of abdominal tergites, and the shape and relative locations of setae on tergite IX.
Eye bare; arista bare; ocellar seta proclinate, short or weak; outer vertical seta reduced, indistinguishable from postocular seta; frontal setae descending to level of upper third of parafacial, flanked by irregular row of shorter setae; fronto-orbital plate with short and thin setulae from vertex level to lowermost frontal seta; one reclinate orbital seta; proclinate orbital seta absent; parafacial bare except for a few hairs below lowest frontal seta; arista tapering smoothly to apex; first aristomere short; second aristomere slightly longer than wide; vibrissa stout, inserted above level of lower facial margin; palpus clavate, slightly bowed on apical third and slightly longer than prementum; lower facial margin slightly projected; genal dilation covered with thin black setulae.
Setae are occasionally present on the eighth tergite (Gagne & Etienne 1996).
Many crustacean swimming appendages carry arrays of plumose setae--exoskelet al., feather-like structures of long bristles (setae) with short branches (setules) distributed along two sides.
The genus Colpocephalum, as found on the Accipitriformes, is characterized by combs of short spiniform setae restricted to the venter of femora III and abdominal sternite III, but the ventral sclerites bearing setae between the vulva and anus are absent in females.
These species share the female exopod of leg 5 with two inner and three apical setae, the second endopodal segment of leg 1 with three setae, and the third endopodal segment of legs 2-4 with three, five and four setae, respectively.
Epandrium microtrichose with four upper setae and 39 and 28 lower setae, right and left respectively.
Among these structures, we find different types of setae with different functions, such as chemosensory, mechanosensory and adhesive (Seyfarth 1985; Barth 2002).
Thorax: Prothorax quadrate, smaller than head; pterothorax trapezal or pentagonal bearing eight to eighteen posterior to lateral setae on pterothorax.
The new species can be included in the genus Lopesia due to the following features: (1) R5 curved at its juncture with Rs (Gagne and Marohasy, 1993); (2) Rs situated near the midlength of Rt (Gagne and Marohasy, 1993); (3) a short postabdomen in female, and the cercus bearing many short, sensory setae (Gagne and Marohasy, 1993), and (4) larva with short and mostly corniform terminal papillae, each on a terminal projection (Gagne and Marohasy, 1993).
Dorsal shield with 28 pairs of setae, most setae distally pilose; setae j1, j6, J2, J5, z1, z5, z6 smooth and needlelike.