valovuorokausi

== Finnish == === Etymology === valo +‎ vuorokausi === Pronunciation === IPA(key): /ˈʋɑloˌʋuo̯roˌkɑu̯si/, [ˈʋɑ̝lo̞ˌʋuo̞̯ro̞ˌkɑ̝u̯s̠i] Rhymes: -ɑusi Syllabification(key): va‧lo‧vuo‧ro‧kau‧si Hyphenation(key): valo‧vuoro‧kausi === Noun === valovuorokausi (astronomy, physics) light day (unit of length equal to the distance light travels in one day) ==== Declension ==== ==== See also ==== valosekunti (“light second”) valotunti (“light hour”) valovuosi (“light year”)