Meaning of DISCOLITH in English

DISCOLITH

( n. )

One of a species of coccoliths, having an oval discoidal body, with a thick strongly refracting rim, and a thinner central portion. One of them measures about / of an inch in its longest diameter.

Webster's Revised Unabridged English Dictionary.      Пересмотренный полный словарь английского языка Webster.