Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of xiphosura is as below...

Limuloidea :: Limuloidea (n. pl.) An order of Merostomata, including among living animals the genus Limulus, with various allied fossil genera, mostly of the Carboniferous period. Called also Xiphosura..

Xiphosura :: Xiphosura (n. pl.) See Xiphura.

Xiphura :: Xiphura (n. pl.) Same as Limuloidea. Called also Xiphosura.

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