| parachordal | <anatomy> Situated on either side of the notochord; applied especially to the cartilaginous rudiments of the skull on each side of the anterior part of the notochord. A parachordal cartilage. Origin: Pref. Para- + chordal. Source: Websters Dictionary (01 Mar 1998) |
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| parachordal cartilage | Cartilage primordia adjacent on either side to the cephalic portion of the notochord in young embryos; they represent an initial step in the formation of the chondrocranium. (05 Mar 2000) |
| parachordal plate | The cartilage primordia of the base of the skull situated on either side of the cephalic part of the notochord. (05 Mar 2000) |