calcar
(noun)
noun
1. A small oven or furnace, used for the calcination of sand and potash, and converting them into frit.
2. (botany, anatomy) A spur-like projection.
(noun)
1. A small oven or furnace, used for the calcination of sand and potash, and converting them into frit.
2. (botany, anatomy) A spur-like projection.