umbones

英汉释义

• n.

  1.盾心浮雕

  2.【动】(两瓣贝的)壳顶;盾顶;【解】(中央)凸,鼓膜凸;【植】(菌盖的)中心突起

英英释义

• n.

  1.a small protuberance on a plant or animal part, e.g. the hump on the caps of some mushrooms, or the bump just above the hinge of a bivalve shell

  2.a small hollow in the center of the outer surface of the eardrum, at the point where the malleus joins it on the inside

  3.a knob at the center of a round shield, especially a Saxon shield