an artifact (or system of artifacts) that is instrumental in accomplishing some end
the quality of being instrumental for some purpose
a subsidiary organ of government created for a special purpose; "are the judicial instrumentalities of local governments adequate?"; "he studied the French instrumentalities for law enforcement"
the occurrence of incoming water (between a low tide and the following high tide); "a tide in the affairs of men which, taken at the flood, leads on to fortune" -Shakespeare
a political organization within the Democratic Party in New York City (late 1800's and early 1900's) seeking political control by corruption and bossism