conductor - the person who collects fares on a public conveyance

gleaner - someone who gathers something in small pieces (e.g. information) slowly and carefully

holder, bearer - the person who is in possession of a check or note or bond or document of title that is endorsed to him or to whoever holds it; "the bond was marked `payable to bearer'"

packrat - a collector of miscellaneous useless objects

rent collector - a person who goes from house to house collecting rents for the owner

Gardner, Isabella Stewart Gardner - United States collector and patron of art who built a museum in Boston to house her collection and opened it to the public in 1903 (1840-1924)

revenue enhancement, tax, taxation - charge against a citizen's person or property or activity for the support of government

anode - the negatively charged terminal of a voltaic cell or storage battery that supplies current

cathode - the positively charged terminal of a voltaic cell or storage battery that supplies current

lead-acid accumulator, lead-acid battery - a battery with lead electrodes with dilute sulphuric acid as the electrolyte; each cell generates about 2 volts

nicad, nickel-cadmium accumulator - a rechargeable battery with a nickel cathode and a cadmium anode; often used in emergency systems because of its low discharge rate when not in use

nickel-iron accumulator, nickel-iron battery - a storage battery having a nickel oxide cathode and an iron anode with an electrolyte of potassium hydroxide; each cell gives about 1.2 volts

secondary cell, storage cell - a cell that can be recharged

galvanic battery, voltaic battery - battery consisting of a number of voltaic cells arranged in series or parallel

register - (computer science) memory device that is the part of computer memory that has a specific address and that is used to hold information of a specific kind

computer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures