o.don.to.phoren.(名词)A structure at the base of the mouth of most mollusks over which the radula is drawn back and forth in breaking up food.舌突起,齿担:一种生理构造,位于大多数软体动物的嘴底部,在这之上齿舌来回收缩以击碎食物【引伸】o.dontoph.oral