| 释义 |
‖ tergum|ˈtɜːgəm|
Pl. terga.
The Latin word for ‘back’ (synon. with dorsum): in special scientific uses. a. The back, or upper surface or portion, of an arthropod or other articulated animal; more usually, the upper plate of each somite or segment of such an animal (= tergite): opp. to sternum. b. Each of the two upper plates of the shell in cirripeds.
1826Kirby & Sp. Entomol. III. 387 Tergum, the upper or supine surface of the abdomen. 1851Darwin Cirripedia Introd. (Palæont. Soc.) 2 In almost all the Lepadidæ the Terga (i.e. the upper or posterior lateral valves) are not characteristic. 1880Huxley Crayfish iii. 96 Each ring [of the abdomen] consists of a dorsal, arched portion, called the tergum [etc.]. |