Pronunciation: (in-ten'su-fī"), [key]
—v., -fied, -fy•ing.
1. to make intense or more intense.
2. to make more acute; strengthen or sharpen.
3. Photog.to increase the density and contrast of (a negative) chemically.
to become intense or more intense.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.