prosoma

pro- (“front”) +‎ soma (“body”), from Ancient Greek σῶμα (sôma, “body”).

• (UK) IPA^(key): /pɹəʊˈsəʊmə/

prosoma (plural prosomas or prosomata)

1. (zoology) The front segment of a body which is divided into two or more segments, especially the cephalothorax of an arachnid or crustacean.
   • 1996, Michael J. Roberts, Spiders of Britain and Northern Europe, Collins, published 1996, page 12:

     The front part, called the cephalothorax (or prosoma), is enclosed within a relatively hard and unyielding chitinous shell.

• mesosoma
• metasoma
• opisthosoma

• poromas

prosoma m (plural prosomas)

1. (entomology) prosoma