- a stiff hair; bristle or bristlelike part.
Origin of seta
First recorded in 1785–95, seta is from the Latin word sēta, saeta bristle
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for seta
We had great difficulty at the bridge of Seta, for it had fallen in.
Seta, a bristle, or a slender body or appendage resembling a bristle.The Elements of Botany
In most species the seta is serrated with distant teeth on one side.Narrative Of The Voyage Of H.M.S. Rattlesnake, Commanded By The Late Captain Owen Stanley, R.N., F.R.S. Etc. During The Years 1846-1850. Including Discoveries And Surveys In New Guinea, The Louisiade Archipelago, Etc. To Which Is Added The Account Of Mr. E.B. Kennedy's Expedition For The Exploration Of The Cape York Peninsula. By John Macgillivray, F.R.G.S. Naturalist To The Expedition. In Two Volumes. Volume 1.
The latter was defeated at Seta in Ise, and killed in the midst of a rice-field by a stray arrow.Japan
In the higher forms a sterile foot and seta is present, and sterile cells or elaters occur with the spores.
- (in invertebrates and some plants) any bristle or bristle-like appendage
- (in mosses) the stalk of the sporophyte that bears the capsule
C18: from Latin
Word Origin and History for seta
plural setae, 1793, from Latin seta "bristle," from PIE root *sai- "to tie, bind" (see sinew). Related: Setaceous.
Online Etymology Dictionary, © 2010 Douglas Harper
- A stiff hair, bristle, or bristlelike process or part.
- A stiff hair, bristle, or bristlelike process or part on an organism. Setae on the bodies of spiders are used as sensory organs, while setae on the bodies of many polychaete worms, such as earthworms, are used for locomotion. Microscopic setae on the feet of geckos allow adhesion to vertical surfaces.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.