[he.li.om.e.ter] n [F heliometre, fr. helio- [1]heli- + -metre -meter] (1753): a visual telescope that has a divided objective designed for measuring the apparent diameter of the sun but also used for measuring angles between celestial bodies or between points on the moon -- he.lio.met.ric adj -- he.lio.met.ri.cal.ly adv
HELIOMETER
Meaning of HELIOMETER in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012