Words, grammatical forms and meanings linked to the ontology.
BYA en · SYM
Meanings
(alt-of, alternative, usually) Alternative spelling of bya (“billion years ago”). ▸ Alternative spelling of bya (“billion years ago (short scale): 10⁹ years ago”).
(alt-of, alternative, dated, uncommon) Alternative spelling of bya (“billion years ago”). ▸ Alternative spelling of bya (“billion years ago (long scale):10¹² years ago: a trillion years ago (short scale)”).