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Meaning of milliarcsecond | Babel Free

Noun CEFR C2

Definitions

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

CEFR level

C2

Mastery
This word is part of the CEFR C2 vocabulary — mastery level.

See also

Milliard milliardaire milliardth milliare milliary millibar