(pharmacology) A semisynthetic form of penicillin C₁₆H₁₉N₃O₄S that is effective against gram-negative and gram-positive bacteria and is used to treat infections of the urinary, respiratory, and intestinal tracts.

(physics) The electric current; charge transmitted per unit time, measured in amperes.

a sensitive, low-noise amplifier of high-frequency or microwave radio waves that utilizes an inductor or capacitor whose reactance varies periodically at a similar frequency

a motor car that can also travel on water

An electronic circuit in which two transistors (one as current source, one as sink) are used to amplify a signal

An electronic circuit used to refresh the value of a bit stored in a DRAM integrated circuit.

A current amplifier that utilizes a push-pull transistor

(law, in some Hispanic jurisdictions, such as Mexico) A writ or an appeal demanding or seeking the protection of constitutional rights similar to a habeas corpus acting as a remedy for the violation of a person's constitutional rights thereby invalidating any laws preventing said person from exercising them.

(physics) a unit of electric charge, equal to the charge transferred by a current of one ampere in one hour through a specified point in a circuit, equal to 3600 coulombs.

(pharmacology) Alternative spelling of dextroamphetamine