microampere

noun

A unit of electric current equal to one millionth of an ampere.

A unit employed in the measurement of very small electric currents; one millionth of an ampere or 1 × 10- c. g. s. units of current.

One of the smaller measures of electrical currents; the millionth part of one ampère.

One millionth ( 10-6 ) of an ampere, abbreviated as µA.