X1 |
abbreviation of "persons under eighteen not admitted" (formerly used as a film rating). |
X2 |
in Roman numeral notation, 10. |
x1 |
to cross out (written or printed matter) with a mark or marks like an "x". [2 definitions] |
x2 |
the twenty-fourth letter of the English alphabet. [6 definitions] |
xanthan |
a natural gum produced by bacterial fermentation of glucose, used as a stabilizer or thickener in commercially prepared foods; xanthan gum. |
xanthein |
the water-soluble part of the pigment in yellow flowers, or of yellow pigment in plant sap. |
xanthic |
having a yellow or yellowish color. [2 definitions] |
xanthine |
a crystalline nitrogenous compound found in blood, urine, and some animal and plant tissues. [2 definitions] |
xantho- |
yellow. |
xanthous |
yellow. [2 definitions] |
x-axis |
in a two-dimensional coordinate system, the horizontal axis, along which the x ordinates are measured. [2 definitions] |
X-C |
abbreviation of "cross-country." |
X chromosome |
the sex chromosome that occurs paired in females and singly in males, and is responsible for female sex characteristics. (Cf. Y chromosome.) |
Xe |
symbol of the chemical element xenon. |
xebec |
a small, three-masted Mediterranean sailing ship with square and triangular sails, and with an overhanging bow and stern. |
xeno- |
strange; foreign. |
xenon |
a chemical element of the inert gas group that has fifty-four protons in each nucleus and that is used as the atmosphere in fluorescent lamps because it glows with a blue light when excited by electricity. (symbol: Xe) |
xenophilia |
a liking for foreigners or strangers or for foreign or strange things. |
xenophobe |
a person who fears or detests foreigners, strangers, or anything that is foreign or strange. |
xenophobia |
excessive or unreasoning fear or hatred of foreign people or things. |
xero- |
dry. |