ionic bond

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A chemical bond between two ions with opposite charges, characteristic of salts.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun chemistry A type of chemical bond where two atoms or molecules are connected to each other by electrostatic attraction.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion