| Words | Parts of Speech | Meaning/Definition/Similar Words |
|---|---|---|
| xanthate | noun | A salt of xanthic; a xanthogenate. |
| xanthian | adjective | Of or pertaining to Xanthus, an ancient town on Asia Minor; — applied especially to certain marbles found near that place, and now in the British Museum. |
| xanthide | noun | A compound or derivative of xanthogen. |
| xanthium | noun | A genus of composite plants in which the scales of the involucre are united so as to form a kind of bur; cocklebur; clotbur. |
| xanthoma | noun | A skin disease marked by the development or irregular yellowish patches upon the skin, especially upon the eyelids; — called also xanthelasma. |
| xanthose | noun | An orange-yellow substance found in pigment spots of certain crabs. |
| xanthous | adjective | Yellow; specifically (Ethnol.), of or pertaining to those races of man which have yellowish, red, auburn, or brown hair. |
| xenogamy | noun | Cross fertilization. |
| xenotime | noun | A native phosphate of yttrium occurring in yellowish-brown tetragonal crystals. |
| xenurine | noun | A cabassou. |
| xeraphim | noun | An old money of account in Bombay, equal to three fifths of a rupee. |
| xeronate | noun | A salt of xeronic acid. |
| xiphioid | adjective | Of, pertaining to, or resembling, a cetacean of the genus Xiphius or family Xiphiidae. |
| xiphodon | noun | An extinct genus of artiodactylous mammals found in the European Tertiary formations. It had slender legs, didactylous feet, and small canine teeth. |
| xylamide | noun | An acid amide derivative of xylic acid, obtained as a white crystalline substance. |
| xylidine | noun | Any one of six metameric hydrocarbons, (CH3)2.C6H3.NH2, resembling aniline, and related to xylene. They are liquids, or easily fusible crystalline substances, of which three are derived from metaxylene, two from orthoxylene, and one from paraxylene. They are called the amido xylenes. |
| xylitone | noun | A yellow oil having a geraniumlike odor, produced as a side product in making phorone; — called also xylite oil. |
| xylocopa | noun | A genus of hymenopterous insects including the carpenter. See Carpenter bee, under Carpenter. |
| xyloidin | noun | A substance resembling pyroxylin, obtained by the action of nitric acid on starch; — called also nitramidin. |
| xylonite | noun | See Zylonite. |
| xylorcin | noun | A derivative of xylene obtained as a white crystalline substance which on exposure in the air becomes red; — called also betaorcin. |
| xylotile | noun | Same as Parkesine. |
| xylotrya | noun | A genus of marine bivalves closely allied to Teredo, and equally destructive to timber. One species (Xylotrya fimbriata) is very common on the Atlantic coast of the United States. |
| xylylene | noun | Any one of three metameric radicals, CH2.C6H4.CH2, derived respectively from the three xylenes. Often used adjectively; as, xylylene alcohol. |
| xystarch | noun | An office/ having the superintendence of the xyst. |