floater in WordNet English dictionary

1. a wanderer who has no established residence or visible means of support
   vagrant  drifter  floater  vagabond 
   
2. an insurance policy covering loss of movable property (e.g. jewelry) regardless of its location
   floater  floating policy 
   
3. an object that floats or is capable of floating
   floater 
   
4. a swimmer who floats in the water
   floater 
   
5. a voter who votes illegally at different polling places in the same election
   floater 
   
6. an employee who is reassigned from job to job as needed
   floater 
   
7. a debt instrument with a variable interest rate tied to some other interest rate (e.g. the rate paid by T-bills)
   floater 
   
8. spots before the eyes caused by opaque cell fragments in the vitreous humor and lens
   "floaters seem to drift through the field of vision"
   musca volitans  muscae volitantes  floater  spots