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原索動物 (げんさくどうぶつ) Japanese meaning | Kotomora

原げん索さく動どう物ぶつ

げ

ん

さ

く

ど

う

ぶ

つ

Meanings

1

protochordate

A zoological term for primitive chordates, including tunicates and lancelets. Used in academic and biological contexts.

原げん索さく動どう物ぶつは脊せき索さく動どう物ぶつの一いち群ぐんで、ホヤやナメクジウオが

含ふく

ま

れる

。

Protochordates are a group of chordates that includes sea squirts and lancelets.

Kanji

原meadow, original, primitive
索cord, rope, searching
動move, motion, change
物thing, object, matter

Related words

脊せき索さく動どう物ぶつ
脊索動物 (chordates) is the broader phylum; 原索動物 is a subgroup of primitive chordates.

Etymology

Compound of 原 (primitive) + 索 (cord) + 動物 (animal), referring to the primitive notochord. The exact historical derivation is uncertain.