Online Google Dictionary

calamites 中文解釋 wordnet sense Collocation Usage Collins Definition
  1. Calamites is a genus of extinct arborescent (tree-like) horsetails to which the modern horsetails (genus Equisetum) are closely related. Unlike their herbaceous modern cousins, these plants were medium-sized trees, growing to heights of more than 30 meters (100 feet). ...
  2. (calamitic) Describing rod-shaped liquid crystals
  3. (calamite) a fossil plant of the Paleozoic era, growing to a height of 100 feet or more