noun ·3 syllables ·Rare ·Advanced level

Definitions

Noun

1. 1
   A flexible rodlike structure that forms the main support of the body in the lowest chordates; a primitive spine.
2. 2
   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 wordnet
3. 3
   A similar structure found in the embryos of vertebrates from which the spine develops.

Etymology

From noto- + chord.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.