Definition of opisthosomal in US English:

opisthosomal

adjective

Zoology
  • Designating, relating to, or situated in the opisthosoma of an invertebrate.

Origin

Early 20th century; earliest use found in Smithsonian Institution Annual Reports. From opistho- + ancient Greek σῶμα body + -al.

Pronunciation

opisthosomal

/əˌpɪsθəˈsəʊməl/