the GNU version of the Collaborative International Dictionary of English
n. A genus of living Brachiopoda; -- so called from its fancied resemblance to the cranium or skull.
The Century Dictionary and Cyclopedia
n. Plural of cranium.
n. A genus of Brachiopoda, typical of the family Craniidæ. See cut under Craniidæ.
Word Usage
"Mr. Hirst's dead sharks and electrocuted flies, butchered lambs and diamond-studded crania are all reminders of the futility of human struggle and the inevitability of death."