| Words | Parts of Speech | Meaning/Definition/Similar Words |
|---|---|---|
| xanthidia | plural | of Xanthidium |
| xanthogen | noun | The hypothetical radical supposed to be characteristic of xanthic acid., Persulphocyanogen. |
| xanthosis | noun | The yellow discoloration often observed in cancerous tumors. |
| xenelasia | noun | A Spartan institution which prohibited strangers from residing in Sparta without permission, its object probably being to preserve the national simplicity of manners. |
| xenodochy | noun | Reception of strangers; hospitality. |
| xenomania | noun | A mania for, or an inordinate attachment to, foreign customs, institutions, manners, fashions, etc. |
| xeroderma | noun | Ichthyosis., A skin disease characterized by the presence of numerous small pigmented spots resembling freckles, with which are subsequently mingled spots of atrophied skin. |
| xerophagy | noun | Among the primitive Christians, the living on a diet of dry food in Lent and on other fasts. |
| xiphidium | noun | A genus of plants of the order Haemodraceae, having two-ranked, sword-shaped leaves. |
| xiphosura | noun pl. | See Xiphura. |
| xylindein | noun | A green or blue pigment produced by Peziza in certain kinds of decayed wood, as the beech, oak, birch, etc., and extracted as an amorphous powder resembling indigo. |
| xylograph | noun | An engraving on wood, or the impression from such an engraving; a print by xylography. |
| xylophaga | noun | A genus of marine bivalves which bore holes in wood. They are allied to Pholas. |
| xylophone | noun | An instrument common among the Russians, Poles, and Tartars, consisting of a series of strips of wood or glass graduated in length to the musical scale, resting on belts of straw, and struck with two small hammers. Called in Germany strohfiedel, or straw fiddle., An instrument to determine the vibrative properties of different kinds of wood. |
| xylostein | noun | A glucoside found in the poisonous berries of a species of honeysuckle (Lonicera xylosteum), and extracted as a bitter, white, crystalline substance. |