prion1

 
Pronunciation: /ˈprʌɪən/

noun

  • a small petrel of southern seas, having a wide bill fringed with comb-like plates for feeding on planktonic crustaceans.
    • Genus Pachyptila, family Procellariidae: six species

Origin:

mid 19th century: modern Latin (former genus name), from Greek priōn 'a saw' (referring to its sawlike bill)