definition of
amp

[1] #1 amp n. [ampere, A] the basic unit of electric current adopted under the Systeme International d'Unites; "a typical household circuit carries 15 to 50 amps". wn

[2] #2 amp n. [adenosine monophosphate, AMP, adenylic acid] a nucleotide found in muscle cells and important in metabolism; reversibly convertible to ADP and ATP. wn