dibranch
/ˈdaɪbræŋk/
noun
- A type of mollusk, such as an octopus or squid, that has two gills.
- Squid and cuttlefish are examples of dibranchs found in the ocean.
- The octopus is a dibranch, meaning it has two gills for breathing.
- Marine biologists study dibranchs to understand their unique anatomy.