WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / S / sidereal time sidereal time noun /saɪdiriəltaɪm/ 4 syllables 13 letters Scrabble 15 WWF 17 Definitions noun measured by the diurnal motion of stars Look “sidereal time” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →