| xi |
the name of the fourteenth letter of the Greek alphabet. |
| Xing |
abbreviation of "crossing." |
| XL |
abbreviation of "extra large." |
| Xmas |
abbreviation of "Christmas." |
| x-radiation |
application of or exposure to x-rays, esp. as treatment for disease. [2 definitions] |
| X-rated |
of a film, performance, or the like, formerly given, or deserving of, a rating of X because of its explicit sexual activity, obscenity, or violence. (See X.) |
| X-ray |
a beam of high-energy photons that is able to ionize gases and pass through dense solids. [5 definitions] |
| xylem |
a plant's woody tissue that carries water and mineral salts. |
| xylene |
any of three colorless, flammable benzene compounds, or a mixture of these compounds. |
| xylo- |
wood. |
| xylophone |
a percussion instrument having a series of graduated metal or wooden bars that sound the notes of the chromatic scale when struck with small wooden mallets. |
| xylose |
a white crystalline sugar used in diabetic diets and for dyeing and tanning. |
| -y1 |
full of; made of; characterized by. [4 definitions] |
| -y2 |
condition; quality. [4 definitions] |
| Y |
symbol of the chemical element yttrium. |
| y |
the twenty-fifth letter of the English alphabet. [4 definitions] |
| ya |
you (spelled to reflect informal pronunciation). |
| yacht |
any of various sailing or motor-driven vessels used for private cruises, racing, or the like. [2 definitions] |
| yachting |
the act, practice, or sport of sailing, cruising, or racing in a yacht. |
| yachtsman |
a man who owns or navigates a yacht. |
| yachtswoman |
a woman who owns or navigates a yacht. |