milliarcsecond
English
Etymology
From
milli-
+
arcsecond
.
Noun
milliarcsecond
(
plural
milliarcseconds
)
(
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