OSTEOSTRACAN as NOUN

1. Meaning
   • extinct jawless fish of the Devonian with armored head
   
   Synonym(s)
   • cephalaspid (what does cephalaspid mean?)
   
   Hypernyms(s) osteostracan is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
   • jawless vertebrate (what does jawless vertebrate mean?)
   • jawless fish (what does jawless fish mean?)
   • agnathan (what does agnathan mean?)