calcar
熔塊窯
cal·car /ˈkælˌkɑr/ 名詞
(複calcaria)距,禽距
Cal·car n. Glass manuf. A kind of oven, or reverberatory furnace, used for the calcination of sand and potash, and converting them into frit.
Cal·car, n.; L. pl. Calcaria
1. Bot. A hollow tube or spur at the base of a petal or corolla.
2. Zool. A slender bony process from the ankle joint of bats, which helps to support the posterior part of the web, in flight.
3. Anat. (a) A spur, or spurlike prominence. (b) A curved ridge in the floor of the leteral ventricle of the brain; the calcar avis, hippocampus minor, or ergot.
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