Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun geology A small calcium carbonate or iron coated grain found on the seafloor.
  • adjective Shaped like an egg; ovoid; ovate.

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[o(o)– + –oid.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

oo- + -id

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