nerve cord

2 ENTRIES FOUND:

nerve cord

noun

Definition of NERVE CORD

1
:  the pair of closely united ventral longitudinal nerves with their segmental ganglia that is characteristic of many elongate invertebrates (as earthworms)
2
:  the dorsal tubular cord of nervous tissue above the notochord of a chordate that comprises or develops into the central nervous system

First Known Use of NERVE CORD

1877

nerve cord

noun    (Medical Dictionary)

Medical Definition of NERVE CORD

: the dorsal tubular cord of nervous tissue above the notochord of a chordate that in vertebrates includes or develops an anterior enlargement comprising the brain and a more posterior part comprising the spinal cord with the two together making up the central nervous system

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