Hardening

Don't touch my spaghetti bridge! The glue is still hardening.

Her heart has been hardening all throughout her string of bad hookups.

I'll bet your arteries are already hardening from all those French fries!

After hardening, you can use your new vase to hold flowers.

How can brown sugar be stored to prevent hardening?

The resin is hardening.

U.S. researchers say urban dwellers exposed to the highest levels of fine particulate air pollution had faster hardening of the arteries, putting them at increased risk of stroke, compared to people in less polluted sections of the same city.

Researchers at Columbia and Harvard Universities are working on a unique new way to treat atherosclerosis, a hardening of the arteries that can lead to heart attack or stroke.