1. Primitive marine animal having a saclike unsegmented body and a urochord that is conspicuous in the larva
   - tunicate, urochordate 
2. A notochord of a larval tunicate typically confined to the caudal region

Derived forms: urochords

Type of: chordate, notochord

Part of: subphylum Tunicata, subphylum Urochorda, subphylum Urochordata, Tunicata, Urochorda, Urochordata

• northern dune tansy
• northern Europe
• northern flying squirrel
• northern harrier
• northern hemisphere
• northern holly fern
• Northern Ireland
• northern Jacob's ladder
• northern lights
• Northern lobster
• northern mammoth
• Northern Mariana Islands
• Northern Marianas
• northern oak fern
• northern oriole
• northern parula
• northern phalarope
• northern pike
• northern pin oak
• northern pitch pine
• northern pocket gopher
• northern porgy
• northern red oak
• Northern Rhodesia
• northern scup