Pronunciation: (kal'su-fī"), [key]
—v.t., v.i., -fied, -fy•ing.
1. Physiol.to make or become calcareous or bony; harden by the deposit of calcium salts.
2. Geol.to harden by deposition of calcium carbonate.
3. to make or become rigid or intransigent, as in a political position.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.