What is 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. -- n. A parachordal cartilage called?

parachordal — 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. -- n. A parachordal cartilage. (Webster's 1913.)

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