palæocene

/P AE1 L OW0 S IY1 N/
noun
  1. 1

    Archaic spelling of Paleocene. [(geology) A geologic epoch within the Paleogene period from about 65 to 56 million years ago; marked by the rise of the first large mammals in a tropical climate.]

adjective
  1. 1

    Archaic spelling of Paleocene. [(geology) Of or pertaining to the Paleocene epoch.]