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xerophthalmia
xerophyte
xeroradiography
xerosis
xerostomia
xerothermic
Xerox
Xhosa
xi
xi hyperon
xi-particle
xiphisternum
xiphoid
xiphoid process
XL
Xmas
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xi
xi [ zī, sī, ksī, ksee ] (plural xis)


noun 
Definition:
 
14th letter of Greek alphabet: the 14th letter of the Greek alphabet, represented in the English alphabet as 'x'
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