SEXTANT


Meaning of SEXTANT in English

[sex.tant] n [NL sextant-, sextans sixth part of a circle, fr. L, sixth part, fr. sextus sixth] (1628): an instrument for measuring angular distances used esp. in navigation to observe altitudes of celestial bodies (as in ascertaining latitude and longitude)

Merriam-Webster English vocab.      Английский словарь Merriam Webster.