Cyatholith

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Cyatholith \Cy*ath"olith\ (s?-?th"?-l?th), n. [Gr. ky`aqos a cup
     + -lith.] (Biol.)
     A kind of coccolith, which in shape resembles a minute cup
     widened at the top, and varies in size from 1/6000 to 1/8000
     of an inch.
     [1913 Webster]