fidget

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To behave or move nervously or restlessly.
2. v. To play or fuss; fiddle: He fidgeted with his notes while lecturing.
3. v. To cause to behave or move nervously or restlessly.
4. n. A condition of restlessness as manifested by nervous movements. Often used in the plural with the.
5. n. One that fidgets.

Century Dictionary and Cyclopedia

1. To move uneasily one way and the other; move irregularly, or in fits and starts; be restless or uneasy; show impatience or uneasiness by restless movements.
2. To make restless, nervous, or fidgety.
3. n. The expression of uneasiness, restlessness, impatience, etc., by irregular spasmodic movements and changes of physical expression; the condition of feeling thus expressed: commonly in the plural: as, to be in a fidget or the fidgets; to have the fidgets.

Wiktionary

1. v. intransitive to wiggle or twitch; to move around nervously or idly
2. n. informal A person who fidgets, especially habitually.

GNU Webster's 1913

1. v. To move uneasily one way and the other; to move irregularly, or by fits and starts.
2. n. Uneasiness; restlessness.
3. n. A general nervous restlessness, manifested by incessant changes of position; dysphoria.

WordNet 3.0

1. n. a feeling of agitation expressed in continual motion
2. v. move restlessly