notochordPronunciation: /ˈnəʊtə(ʊ)kɔːd/Definition of notochord noun Zoology a cartilaginous skeletal rod supporting the body in all embryonic and some adult chordate animals. Origin: mid 19th century: from Greek nōton 'back' + chord2notochord in other Oxford dictionaries Definition of notochord in the US English dictionary
