Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

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

from The Century Dictionary.

  • noun 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.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Elec.) One of the smaller measures of electrical currents; the millionth part of one ampère.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

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

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

micro- +‎ ampere

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Examples

  • The vacuum chamber is 60 inches in diameter, and it produces 100 microampere currents of 16 million volt deuterons.

    Nobel Prize in Physics 1939 - Presentation Speech 1940

  • The scientists were able to achieve a 200-microampere-per-square-cm current density and an open-circuit voltage of

    Nano Tech Wire 2010

  • The scientists were able to achieve a 200-microampere-per-square-cm current density and an open-circuit voltage of

    PhysOrg.com - latest science and technology news stories PhysOrg Team 2010

  • To ensure that the LIN node's current consumption is well below 100 microampere in applications that are continuously connected to the battery, the ATA6617 provides several current saving modes where different functionalities are individually switched off or on, depending on the application requirements.

    unknown title 2009

  • Simple assignment of an individual physical LIN node address, which is important in applications such as air-conditioning systems, can be realized by using an integrated 100 microampere current source.

    unknown title 2009

  • This thing over my head is like a wireless telephone receiver, capable of detecting a current of even a quarter of a microampere. "

    The Dream Doctor 1908

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