1. A member of Cyclostomata, a class of jawless fish including lampreys and hagfish, characterized by a circular mouth.
Usage: zoology; technical

1. Of or relating to cyclostomates; having a circular or sucker-like mouth.
Usage: zoology; technical

Examples

• Lampreys are cyclostomates that attach to fish using their circular mouths.
• The cyclostomate mouth structure is highly specialized for feeding.
• Marine biologists study cyclostomate species to understand early vertebrate evolution.
• Hagfish, another cyclostomate, produces slime as a defense mechanism.
• Cyclostomate fossils provide evidence of ancient jawless fish.