Definition of hystricomorph in US English:

hystricomorph

adjective & noun

Zoology
  • See Hystricomorpha

    • ‘The myomorph and sciuromorph taxa are included in the Sciurognathi, while most hystricomorphs are in the Hystricognathi.’
    • ‘Nevertheless, hystricomorph rodents are an exception among mammals, possessing an insulin molecule with many amino acid substitutions.’

Pronunciation

hystricomorph

/ˈhistrikōˌmôrf/