noun, noun which may take the genitive case particle 'no'
notochord
A biological term for the flexible rod-like structure found in the embryos of all chordates, serving as a primitive spinal cord. Used in zoology and developmental biology contexts.
脊索は脊椎動物の発生過程で一時的に現れる構造です。
The notochord is a structure that appears temporarily during the development of vertebrates.
ナメクジウオは生涯にわたって脊索を保持する。
The lancelet retains its notochord throughout its life.