floating charge

from The Collaborative International Dictionary of English v.0.48
Floating charge \Floating charge\, lien \lien\, etc. (Law)
   A charge, lien, etc., that successively attaches to such
   assets as a person may have from time to time, leaving him
   more or less free to dispose of or encumber them as if no
   such charge or lien existed.
    

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