calcaria is calcar's Plural Form

calcar

US

UK ['kɛəɪr]

n.【化】(焙化玻璃的)熔炉；煅烧炉；【植】距管；【动】距

Plural Form：calcaria

E-C

n.	1. 【化】(焙化玻璃的)熔炉;煅烧炉 2. 【植】距管 3. 【动】距