v. t. 1. To enter again; as, You cannot re-enter the country with this visa. [ 1913 Webster ]

2. (Engraving) To cut deeper, as engraved lines on a plate of metal, when the engraving has not been deep enough, or the plate has become worn in printing. [ 1913 Webster ]

3. (Computers) To put (data) into a document or form on a computer again; -- usually to correct an erroneous entry; as, the password was incorrect, and had to be reentered. [ PJC ]

v. i. To enter anew or again. [ 1913 Webster ]

Reentering angle, an angle of a polygon pointing inward, as a, in the cut. --
Reentering polygon, a polygon having one or more reentering angles. [ 1913 Webster ]

n. (Calico Printing.) The process of applying additional colors, by applications of printing blocks, to patterns already partly colored. [ 1913 Webster ]