milliarcsecond

English

Etymology

From milli- +‎ arcsecond.

Noun

milliarcsecond (plural milliarcseconds)

1. (metrology) A unit of angle equal to one thousandth of an arcsecond (used especially in astronomy)

Derived terms

• (abbreviation): mas, milliarcsec
• submilliarcsecond

Related terms

• milli-
• arcsecond