calc-

1.
a combining form of calcareous:
calc-tufa.
2.
variant of calci- before a vowel:
calcic.
Origin
< German Kalk lime < Latin calc- (stem of calx) lime, limestone; see calx, chalk
British Dictionary definitions for calc-

calc-

combining form
1.
a variant of calci-

calci-

combining form
1.
indicating lime or calcium: calcify
Word Origin
from Latin calx, calc- limestone