phosphorylation

A process (catalysed by enzymes) involving the transfer of a phosphate group from a donor to a suitable acceptor; in general, an ester linkage is formed, for example:
ATP + alcohol-->ADP + phosphate ester
Source:
PAC, 1997, 69, 1251 (Glossary of terms used in bioinorganic chemistry (IUPAC Recommendations 1997)) on page 1291