11 letters · 18 points in Scrabble
noun one millionth (10^-6) of a second; one thousandth of a millisecond
originEtymology tree Proto-Indo-European *mey-der.? Ancient Greek μικρός (mikrós)der. English micro- English second English microsecond From micro- + second.
Etymology from Wiktionary, CC BY-SA 3.0