![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/99/Wiktionary-logo-en-v2.svg/40px-Wiktionary-logo-en-v2.svg.png)
Look up covalent in Wiktionary, the free dictionary.
Covalent may refer to:
- Covalent bond, a type of chemical bond
- Covalent radius, half the distance between two covalently bonded atoms
- Covalent modulation, the alteration of protein structure by covalent bonding