Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An ancient wormhole in sand, preserved in the rocks.

from the GNU version of the Collaborative International Dictionary of English

  • n. An ancient wormhole in sand, preserved in the rocks.

from The Century Dictionary and Cyclopedia

  • n. The name given by some paleontologists to peculiar markings observed on various rocks in Wales and Newfoundland, and supposed to be burrows of annelids, or something similar.

Etymologies

Latin arena sand + colere to cherish or live. (Wiktionary)

Examples

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