- Bot. a hollow projection or nectar spur, as at the base of a corolla
- Ornithology a spur on a bird's wing or leg
Origin of calcarL, a spur ; from calx (gen. calcis), the heel: for Indo-European base see scolex
A spur or spurlike projection, such as one found on the base of a petal or on the wing or leg of a bird.
Origin of calcarLatin, spur, from calx, calc-, heel.
A furnace formerly used in glassmaking for calcination of materials into frit.
Origin of calcarItalian calcara, from Late Latin calcaria (fornax), lime(-kiln), from Latin, feminine of calcarius, of lime; see calcareous.
From the Italian calcara (“lime-kiln”).
- (botany, anatomy) A spur-like projection.
OriginSee also: calçar
From the Latin calcar (“spur”).