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Pronunciation varies by accent · noun
(zoology) Any of the Chasmataspidida, an extinct group of chelicerate arthropods..
The sixth prosomal appendage is modified in both xiphosurids and chasmataspidids for use in locomotion or burrowing.
Use chasmataspidid when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Chasmataspidid means (zoology) Any of the Chasmataspidida, an extinct group of chelicerate arthropods..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
The sixth prosomal appendage is modified in both xiphosurids and chasmataspidids for use in locomotion or burrowing.
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