merostomata

📖 中文释义

  1. [医]肢口纲
📘 English Definition（英文释义）
  1. n. pl. A class of Arthropoda, allied to the Crustacea. It
  2. includes the trilobites, Eurypteroidea, and Limuloidea. All are extinct
  3. except the horseshoe crabs of the last group. See Limulus.