noun Download 🔗Share A flexible rodlike structure that forms the main support of the body in the lowest chordates; a primitive spine Examples : "Even though humans develop a vertebral column, in the early stages of embryonic development, we possess a notochord, a flexible rod that provides support. " anatomy biology organism animal body part structure Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A similar structure found in the embryos of vertebrates from which the spine develops Examples : "During development, the embryo of a fish has a notochord, which is eventually replaced by a spine. " anatomy biology organism body part structure science physiology Chat with AIVocabulary GamePractice Reading