| notochordal | <anatomy> Of or pertaining to the notochord; having a notochord. Source: Websters Dictionary (01 Mar 1998) |
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| notochordal canal | Invagination of the blastopore into the notochordal process to form a cavity. See: neurenteric canal. Synonym: notochordal canal. (05 Mar 2000) |
| notochordal plate | The sheet of notochordal cells that are intercalated in the endodermal roof of the primitive yolk sac. See: head process. (05 Mar 2000) |
| notochordal process | In the embryo, a midline column of cells that migrate forward from the primitive node to form the notochord. See: head process. (05 Mar 2000) |
| notochordal sheath | The fibrous outer covering of the notochord. (05 Mar 2000) |
| notochordal vertebrate | A lower vertebrate in which the notochord persists, unossified, in adult life. (05 Mar 2000) |