You searched for: “zeptowatt
zeptowatt (zW)
The sextillionth [U.S.] or quadrillionth part [U.K.], 10-21 [0.000 000 000 000 000 000 001] of a watt or the approximate power of Galileo space probe's radio signal (when at Jupiter) as received on earth by a 70 meter DSN antenna, or the Deep Space Network, which is an international network of communication facilities that supports interplanetary spacecraft missions.
This entry is located in the following unit: zepto- [ZEP toh] (page 1)