资料来源 : pyDict

两极胚盘; 两盘体

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Amphidisc \Am"phi*disc\, n. [Gr. 'amfi` + di`skos a round
   plate.] (Zo["o]l.)
   A peculiar small siliceous spicule having a denticulated
   wheel at each end; -- found in freshwater sponges.