transcription, транскрипция: [ ˌhē-lē-ˈä-mə-tər ]
noun
Etymology: French héliomètre, from hélio- heli- (I) + -mètre -meter
Date: 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 ˌhē-lē-ō-ˈme-trik adjective
• he·lio·met·ri·cal·ly -tri-k(ə-)lē adverb