| 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. |
| xerography |
a copying process in which the original image is reproduced on paper or the like with a resinous powder by the action of light on an electrically charged surface. |
| xerophilous |
capable of surviving or flourishing in esp. hot arid regions. |