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n. pl. ter·ga (-gə)
The dorsal portion of a body segment of an arthropod.

[Latin, back.]

ter′gal (-gəl) 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 -ga (-ɡə)
(Zoology) a cuticular plate covering the dorsal surface of a body segment of an arthropod. Compare sternum3
[C19: from Latin: the back]
ˈtergal adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈtɜr gəm)

n., pl. -ga (-gə).
the dorsal surface of a body segment of an arthropod.
[1820–30; < Latin: the back]
ter′gal, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
In the bachue species group, which contains most of the species, the first antennal flagellomere is distinctly longer than the second flagellomere, the clypeus is maculated with yellow or cream, the fifth sternum bears stout spines midapically, and the seventh tergum is medially emarginate on its distal margin.
Terminology follows that used in the above literature and the following abbreviations are used in the keys: S for metasomal sternum, T for metasomal tergum (e.g.
Thompson and Ghorpade (1992) identified this as a new species and gave the diagnostic characters as follows: spurious vein short and ending before the junction of fourth vein and sub-apical cross vein; tergum 3 with a pair of narrow yellow spots anteriorly; fore and mid tibia orange yellow and female with a whitish pair of pollinose spots on frons anteriorly.
separate), the number of tubercles on the penultimate abdominal tergum (in Vietnura 3 tubercles: 2 (De + DL) and (Di + Di), in Intricatonura gen.
These plates include a median dorsal carina, and on each side one to two scuta and a tergum. The scuta are posterior to the tergum, and near to peduncle.
Chan et al (2007a, b) have demonstrated the utility of this multivariate technique to discriminate the scutum and tergum parameters among barnacle species.