• Webster's Revised Unabridged Dictionary
    • n Corallum (Zoöl) The coral or skeleton of a zoöphyte, whether calcareous of horny, simple or compound. See Coral.
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Century Dictionary and Cyclopedia
    • n corallum Coral; a coral; the skeleton of a coral polypidom; the calcified tissue of the coralligenous actinozoans.
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Webster's Revised Unabridged Dictionary


In literature:

Margaritae et corallum ad melancholiam praecipue valent.
"The Anatomy of Melancholy" by Democritus Junior
CORALLUM (from the Latin for Red Coral).
"The Ancient Life History of the Earth" by Henry Alleyne Nicholson
The larvae of corals are free swimming ciliated forms known as planulae, and they do not acquire a corallum until they fix themselves.
"Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2" by Various