one thousandth of a second: abbrev. ms
nounAbbr. ms or msec
One thousandth (10−3) of a second.
- One one-thousandth of a second. Symbol: ms
- The suggestion that pulsars were rotating neutron stars was put forth independently by Thomas Gold and Franco Pacini in 1968, and was soon proven beyond reasonable doubt by the discovery of a pulsar with a very short (33-millisecond) pulse period in the Crab nebula.