Usually means: Extinct armored jawless fish fossils.
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We found 15 dictionaries that define the word ostracoderm:

General (14 matching dictionaries)
  1. ostracoderm: Merriam-Webster
  2. ostracoderm: Oxford Learner's Dictionaries
  3. ostracoderm: American Heritage Dictionary of the English Language
  4. ostracoderm: Collins English Dictionary
  5. ostracoderm: Vocabulary.com
  6. ostracoderm: Wordnik
  7. ostracoderm: Wiktionary
  8. ostracoderm: Infoplease Dictionary
  9. ostracoderm: Dictionary.com
  10. Ostracoderm: Wikipedia, the Free Encyclopedia
  11. ostracoderm: Rhymezone
  12. ostracoderm: FreeDictionary.org
  13. ostracoderm: Mnemonic Dictionary
  14. ostracoderm: TheFreeDictionary.com

Computing (1 matching dictionary)
  1. ostracoderm: Encyclopedia

(Note: See ostracoderms as well.)

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Definitions from Wiktionary (ostracoderm)

▸ noun:  (zoology) Any of the armored jawless fishes of the Paleozoic.

Similar:
ostraciid, osteostracan, ostracean, ostraciont, boxfish, ostariophysian, palaeoniscid, placoderm, asterosteid, ostariophysan, more...

Opposite:
gnathostome, jawed fish, vertebrate

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Similar:
ostraciid, osteostracan, ostracean, ostraciont, boxfish, ostariophysian, palaeoniscid, placoderm, asterosteid, ostariophysan, more...

Opposite:
gnathostome, jawed fish, vertebrate



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