from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A unit of power equal to one millionth (10-6) of a watt.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. One millionth ( 10-6 ) of a watt, abbreviated as µW.

from The Century Dictionary and Cyclopedia

  • n. A unit of power or activity equal to ten ergs per second; a millionth of a watt.


from Wiktionary, Creative Commons Attribution/Share-Alike License

From micro- + watt


  • These can run on low power levels of about one microwatt, but they need a long-lasting nano-sized power source instead of a battery to be truly nano scale.

    Medical Devices Powered by the Patient’s Own Heart | Impact Lab

  • Some people fondly remember Seiko's Thermic watch, which runs continuously off body heat on 1 microwatt (one-millionth of a watt).

    Turning Body Heat Into Electricity

  • Their simulations showed how 1 droplet can generate anywhere between 1 microwatt and 12 milliwatts.

    ALTERNATIVE ENERGY: Rain Power | Inhabitat

  • The mice receiving a tad over 1 microwatt/cm2 regressed to sterility after only three generations. 73

    Microwave Technology: An End to the Human Race

  • Mice who received less than 1 microwatt/cm2 had a progressive decrease in newborns and became irreversibly sterile after five generations.

    Microwave Technology: An End to the Human Race

  • It is a great honor for George Smoot and me to accept the Prize in Physics this year for our work on the very first light, the incredibly intense heat radiation that filled the universe when it was young, and still shines down on us with a microwatt per square meter even now.

    John C. Mather - Banquet Speech

  • The process was harmless per se, because the device they built masses less than a gram, neatly woven into your peritoneum near the diaphragm, and taps less than a microwatt from the metabolism of surrounding cells.

    The Stars Are Also Fire

  • To the last microwatt of his mental energies he drove in behind Tong and Worsel like a fullback hitting the fine of scrimmage to break the opposition and drive the ball carrier forward.

    The Dragon Lensman

  • If she was broadcastin ', with a hell of a lot more'n a micro-microwatt -- it'd be bad!

    The Machine That Saved The World

  • By the time a signal transmitted from the tower hits your cell phone, it will be in the µW (microwatt) or nW (nanowatt) range.

    Ars Technica


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