Definitions from Wiktionary (rontosecond)

▸ noun:  (metrology) An SI unit of time equal to 10⁻²⁷ seconds. Symbol: rs


▸ Words similar to rontosecond
▸ Usage examples for rontosecond

▸ Idioms related to rontosecond
▸ Wikipedia articles (New!)
▸ Popular adjectives describing rontosecond
▸ Words that often appear near rontosecond
▸ Rhymes of rontosecond

▸ Invented words related to rontosecond