noun, plural ter·ga [tur-guh] /ˈtɜr gə/. Zoology.
Origin of tergum
Examples from the Web for tergum
Tergum rather narrow, with the apex produced or beaked; the beak is purplish and flat.
Tergum with the longitudinal furrow closed in the upper part: spur not closely adjoining the basi-scutal angle.
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.
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.