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cranidium. In DICTIOUS you will not only get to know all the dictionary meanings for the word
cranidium, but we will also tell you about its etymology, its characteristics and you will know how to say
cranidium in singular and plural. Everything you need to know about the word
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English
Etymology
From cranio- + -idium.
Noun
cranidium (plural cranidiums or cranidia)
- (anatomy) In trilobites, the part of the cephalon (the head) consisting of the glabella and the fixigenae.