calcar

名词 n.
中文释义

英文释义

名词 n.
  1. A small oven or furnace, used for the calcination of sand and potash, and converting them into frit.
  2. A spur-like projection.
    — ... a calcar, the apical spine of the inner series must in many of the species be also considered as such, since the appearance of both, and their position as regards the calcaria, are precisely similar. This apical spine of the inner[…]

词形变化

calcars plural calcars plural calcaria plural

词源

词源 1
From the Italian calcara (“lime-kiln”).
词源 2
From the Latin calcar (“spur”).
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