3 ms·

"Prior" is an adjective.

• dataflow 9mo ago
  In math it's a well-known shorthand for "prior distribution", a noun. https://en.wikipedia.org/wiki/Prior_probability https://en.wikipedia.org/wiki/Prior_probability
• 4sak3n 9mo ago
  Adjectives can be used as nouns in informal speech
  • gavmor 8mo ago
    Yes, but I find it really, really irritating.