Pronunciation: (gīd'ns),[key] —n. 1. the act or function of guiding; leadership; direction.
2. advice or counseling, esp. that provided for students choosing a course of study or preparing for a vocation.
3. supervised care or assistance, esp. therapeutic help in the treatment of minor emotional disturbances.
4. something that guides.
5. the process by which the flight of a missile or rocket may be altered in speed and direction in response to controls situated either wholly in the projectile or partly at a base.