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theca

/'θi:kә/

📖 中文释义

  1. n. 囊, 膜, 鞘
  2. [医] 膜, 鞘
📘 English Definition(英文释义)
  1. n. a case or sheath especially a pollen sac or moss capsule
  2. n. outer sheath of the pupa of certain insects