cre·a·tine (krēə-tēn′, -tĭn) also cre·a·tin (-tĭn)
A compound, C4H9N3O2, that is found in the muscle tissue of vertebrates mainly in the form of phosphocreatine and that is involved in storing and supplying energy for muscle contraction.
[French créatine : from Greek kreas, kreat-, flesh; see kreuə- in the Appendix of Indo-European roots.]
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