| n. | 1. | (Glass manuf.) A kind of oven, or reverberatory furnace, used for the calcination of sand and potash, and converting them into frit. |
| 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 spur, or spurlike prominence. |