a nucleotide, CHPON, present in, and vital to the energy processes of, all living cells
see ADP
Origin:
a(denosine) t(ri)p(hosphate)
See ATP in American Heritage Dictionary 4
noun
An adenosine-derived nucleotide, C10H16N5O13P3, that contains high-energy phosphate bonds and is used to transport energy to cells for biochemical processes, including muscle contraction and enzymatic metabolism, through its hydrolysis to ADP. ATP is hydrolyzed to AMP when it is incorporated into DNA or RNA.