English
heliosynchronous
From helio- + synchronous.
Formed from helio- + synchronous
Proto-Indo-European *sóh₂wl̥ ‘sun’
Proto-Hellenic *hāwélios ‘sun’
Ancient Greek ἥλιος ‘sun’
English helio-
Ancient Greek χρόνος ‘time’
Ancient Greek σύγχρονος ‘contemporaneous’
Late Latin synchronus ‘contemporary, synchronic’
English synchronous
Today it means
adj Describing an orbit around the Earth where each passage in the same direction along a given latitude will occur throughout the year at the same true solar time.
Language periods are conventional ranges, not dates for this word.
Etymograph / heliosynchronous