無む口こう

noun which may take the genitive case particle 'no'

astomatous; mouthless

Technical term in zoology for organisms that lack a mouth. Rare outside scientific contexts.

• 無む口こうの生せい物ぶつは、他ほかの方ほう法ほうで栄えい養ようを吸きゅう収しゅうする。

  Astomatous organisms absorb nutrients by other means.