INCIS'ION, noun s as z. [Latin incisio, from incido, to cut.]
1. A cutting; the act of cutting into a substance.
2. A cut; a gash; the separation of the surface of any substance made by a sharp instrument. The surgeon with his knife makes an incision in the flesh, and the gardener, in a tree; but we do not say, an incision is made with a plow or a spade; at least such phraseology is unusual.
3. Separation of viscid matter by medicines.