• Webster's Revised Unabridged Dictionary
    • n Coccolith (Biol) One of a kind of minute, calcareous bodies, probably vegetable, often abundant in deep-sea mud.
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Century Dictionary and Cyclopedia
    • n coccolith A minute round organic body, consisting of several concreted layers surrounding a clear center, found in profusion at great depths in the North Atlantic ocean embedded in matter resembling sarcode. It is probable that the coccoliths are unicellular algæ.
    • n coccolith Harting has found that minute calcareous disks are separated out of a solution of lime sulphate or lime chlorid by the action of ammonia generated by the decomposition of organic matter, and therefore it has been inferred that the coccoliths may be separated from the sea-water whenever organic decomposition is in progress in the presence of lime sulphate.
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Webster's Revised Unabridged Dictionary
Gr. a grain, seed + -lith,