ASTROMETRY /əˈstɹɒmətɹi/ Scrabble 15 Words With Friends 15 Scrabble letter values: A1S1T1R1O1M3E1T1R1Y4 = 15 Definition noun the branch of astronomy that deals with the measurement of the position and motion of celestial bodies. See all 511 words you can make from ASTROMETRY → 10-letter words Words starting with A Words ending with Y ← Unscramble different letters