XXX, XXXX, XXXXX
[fôreks′, fīveks′]
the designations for abnormal sex chromosome complements in the human female in which there are, respectively, three, four, or five instead of the normal two X chromosomes so that each somatic cell contains a total of 47, 48, or 49 chromosomes. Although there is no consistent phenotype associated with such aberrations, the risk of congenital anomalies and mental retardation in the affected individual increases significantly as the number of X chromosomes increases.
Ref. Mosby's Medical Dictionary, 8th edition. © 2009, Elsevier.
xray
X is represented by Xray
No. Neither X-Ray nor xray are allowed in Scrabble.
Yes, XRAY is a company. If you are referring to the electromagnetic radiation, x-ray what you mean.
xray
Rayon X
Xray Engineer
chest x-ray shows a questionable right basilar opacity
Xylophone, xray,
Xray
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xray costume