Related to Metasome: Metasoma, Urosome


n.1.(Zool.) One of the component segments of the body of an animal.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
R II: in copepods it includes the metasome (the head and the thorax with their respective appendages), whereas in cladocerans it involves the head and the anterior part of the carapace including the thoracic legs.
In cyclopoid copepods, the urosome was the preferred region (RIII) followed by the metasome (R II).