ostracoderm

 : 
Noun
 : 
os=tra=co=derm

WORDNET DICTIONARY

Noun ostracoderm has 1 sense

CIDE DICTIONARY

ostracodermn. 
     Any of several extinct fishlike jawless vertebrates having a heavily armored body; of the Paleozoic.  [WordNet 1.5]

For further exploring for "ostracoderm" in Webster Dictionary Online


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