srd
SRD
Grappling: Engaged in wrestling or some other form of hand-to-hand struggle with one or more attackers. A grappling character can undertake only a limited number of actions. He does not threaten any squares, and loses his Dexterity bonus to AC (if any) against opponents he isn’t grappling.
Open Game Content from the System Reference Document 3.5, used under the Open Game License 1.0a.