nucleotide - a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA)

data processing - (computer science) a series of operations on data by a computer in order to retrieve or transform or classify information

EDP, electronic data processing - automatic data processing by electronic means without the use of tabulating cards or punched tapes

IDP, integrated data processing - automatic data processing in which data acquisition and other stages or processing are integrated into a coherent system