parachordal, a. (n.) Embryol.
(pærəˈkɔːdəl)
[f. Gr. παρα- para-1 + χορδή chord + -al1.]
Situated beside the notochord: applied to two plates of cartilage, forming the foundation of the skull in the embryo. b. as n. = Parachordal cartilage.
| 1875 Newton in Encycl. Brit. III. 701/2 The hinder and front cartilages, parachordal and trabecular, are applied to each other unconformably. 1881 Mivart Cat 337 The basi⁓cranial plate or parachordal cartilage. 1892 Syd. Soc. Lex. s.v., The parachordals with the cephalic portion of the notochord form the basilar plate. |