ETYM From Buoy.
1. Characterized by liveliness and light-heartedness; SYN. chirpy, perky.
2. Tending to float on a liquid or rise in air or gas; SYN. floaty.
1. Resembling cork
2. Having an unpleasant odor and taste (as from a tainted cork)
1. Borne up by or suspended in a liquid
2. Hanging or moving freely in air
3. Inclined to move or be moved about
4. (Of a part of the body) Not firmly connected; movable or out of normal position
5. Not definitely committed to a party or policy
State of equilibrium in which a body rests on or is suspended in the surface of a fluid (liquid or gas). According to Archimedes' principle, a body wholly or partly immersed in a fluid will be subjected to an upward force, or upthrust, equal in magnitude to the weight of the fluid it has displaced.
If the density of the body is greater than that of the fluid, then its weight will be greater than the upthrust and it will sink. However, if the body's density is less than that of the fluid, the upthrust will be the greater and the body will be pushed upward toward the surface. As the body rises above the surface the amount of fluid that it displaces (and therefore the magnitude of the upthrust) decreases. Eventually the upthrust acting on the submerged part of the body will equal the body's weight, equilibrium will be reached, and the body will float.