D defs.my
Entry 1 sense Webster, 1913

Cyatholith

/(s?-?th"?-l?th)/ · Cy·ath·olith · IPA
01 n. A kind of coccolith, which in shape resembles a minute cup widened at the top, and varies in size from <frac:1_6000/ to <frac:1_8000/ of an inch.
  1. 1.
    A kind of coccolith, which in shape resembles a minute cup widened at the top, and varies in size from <frac:1_6000/ to <frac:1_8000/ of an inch.(Biol.)