notochord

/ˌnoʊdəˈkɔərd/

Other forms: notochords

Definitions of notochord

1. noun

   a flexible rodlike structure that forms the supporting axis of the body in the lowest chordates and lowest vertebrates and in embryos of higher vertebrates
   types:

   urochord

   a notochord of a larval tunicate typically confined to the caudal region

   type of:

   back, backbone, rachis, spinal column, spine, vertebral column

   the series of vertebrae forming the axis of the skeleton and protecting the spinal cord