metasoma

/ ˌmɛtəˈsəʊmə /

noun

1. zoology the posterior part of an arachnid's abdomen (opisthosoma) that never carries appendages

Example Sentences

There is nothing among the trilobites comparable to the movable lateral spines of the metasoma of Limulus.

From Project Gutenberg

It is probable that we have in the metasoma of Limulus a case of the disappearance of once clearly demarcated somites.

From Project Gutenberg