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xanthate
xanthene
xanthic acid
xanthine
xantho-
xanthoma
xanthomatosis
xanthone
xanthophyll
xanthopterin
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xenolith
xen·o·lith [ zénnə lìth, znə lìth ] (plural xen·o·liths)


noun 
Definition:
 
foreign rock fragment: a fragment of rock that is different in origin from the igneous rock in which it occurs

xen·o·lith·ic [ zènnə líthik, znə líthik ] adjective
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