马蹄
horse's hoof; horseshoe; Chinese water chestnut (Eleocharis dulcis or E. congesta)
马提尼克
Martinique (French Caribbean island)
马蹄星云
Omega or Horseshoe Nebula M17
马蹄蟹
horseshoe crab (Tachypleus tridentatus)
达尔马提亚
Dalmatia, Croatian region on the eastern coast of Adriatic Sea