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tergum

American  
[tur-guhm] / ˈtɜr gəm /

noun

Zoology.

plural

terga
  1. the dorsal surface of a body segment of an arthropod.


tergum British  
/ ˈtɜːɡəm /

noun

  1. a cuticular plate covering the dorsal surface of a body segment of an arthropod Compare sternum

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • tergal adjective

Etymology

Origin of tergum

1820–30; < Latin: the back

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The “tergal hypothesis” suggests that wings originated on the tergum — the top of the insect body wall — perhaps as gliding membranes.

From New York Times

Ter′gite, the tergum or back of one of the somites or segments of an arthropod, &c.—adj.

From Project Gutenberg

Somite of a Lobster, separated and viewed from in front. t, tergum; s, sternum; pl, pleuron.

From Project Gutenberg

A dorsal and a ventral plate are often distinguished, known respectively as the tergum and the sternum, and the tergum may overhang the insertion of the limb on each side as a free plate called the pleuron.

From Project Gutenberg

VII, Usually considered to be the tergum of the genital somite, but suggested by Pocock to be that of the otherwise suppressed praegenital somite.

From Project Gutenberg