Affixes

Pleonasm (Greek azein, breathe hard) is the use of more words than are necessary to convey meaning; pleocytosis (Greek kutos, vessel) is the presence of an abnormally large number of lymphocytes in the cerebrospinal fluid; pleiotropy (Greek tropē, turning) is the production by a single gene of two or more apparently unrelated effects; the Pliocene (Greek kainos, new) epoch, follows the Miocene and precedes the Pleistocene epoch; the pliosaur (Greek sauros, lizard) is a plesiosaur, so named because of its greater similarity to a lizard than the ichthyosaur.