tergum

[ tur-guh m ]

/ ˈtɜr gəm /

the dorsal surface of a body segment of an arthropod.

Origin of tergum

1820–30; < Latin: the back

terf, terfel, tergal, tergite, tergiversate, tergum, terhune, teriyaki, term, term day, term infant

Tergum rather narrow, with the apex produced or beaked; the beak is purplish and flat.

A Monograph on the Sub-class Cirripedia (Volume 2 of 2) |Charles Darwin
Tergum with the longitudinal furrow closed in the upper part: spur not closely adjoining the basi-scutal angle.

A Monograph on the Sub-class Cirripedia (Volume 2 of 2) |Charles Darwin
I may remark, that in all the species of Lepas, the upper part of the tergum seems particularly variable.

A Monograph on the Sub-class Cirripedia (Volume 1 of 2) |Charles Darwin
The Tergum hardly differs at all from that of B. cepa, but is perhaps of rather greater breadth.

A Monograph on the Sub-class Cirripedia (Volume 2 of 2) |Charles Darwin

The tergum is of large size, and nearly square; it is, in appearance, separated from the scutum by a ridge running up to the apex.

A Monograph on the Sub-class Cirripedia (Volume 2 of 2) |Charles Darwin

tergum

/ (ˈtɜːɡəm) /

a cuticular plate covering the dorsal surface of a body segment of an arthropod Compare sternum (def. 3)

tergal, adjective

C19: from Latin: the back