Meaning of dephosphorylation

de•phos•pho•ryl•a•tion

Pronunciation: (dē-fos'fur-u-lā'shun), [key]
— n. Biochem.
  1. the removal of a phosphate group from an organic compound, as in the changing of ATP to ADP.
  2. the resulting state or condition.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.