| CHROMOXYLOGRAPH | • chromoxylograph n. A woodcut produced in colour. • CHROMOXYLOGRAPH n. a picture printed in colours from wooden blocks. | 
| EXHILARATOR | • exhilarator n. One who, or that which, causes exhilaration. • EXHILARATOR n. one who exhilarates. | 
| EXHILARATORS | • exhilarators n. Plural of exhilarator. • EXHILARATOR n. one who exhilarates. | 
| EXHILARATORY | • exhilaratory adj. Causing exhilaration. • EXHILARATORY adj. serving to exhilarate. | 
| EXTRAVEHICULAR | • extravehicular adj. Relating to, on happening in, the space outside a vehicle, especially a spacecraft in space. • extra-vehicular adj. Alternative spelling of extravehicular. • EXTRAVEHICULAR adj. taking place outside a vehicle (as a spacecraft). | 
| HEXYLRESORCINOL | • hexylresorcinol n. (Organic chemistry) A hexyl derivative of resorcinol that has anaesthetic, antiseptic and antihelmintic properties. • HEXYLRESORCINOL n. a crystalline phenol used as an antiseptic and anthelmintic. | 
| HYDROXYPROLINE | • hydroxyproline n. (Biochemistry) A hydroxy derivative of the amino acid proline found in the structural proteins of connective tissue. • HYDROXYPROLINE n. an amino acid. | 
| HYDROXYPROLINES | • hydroxyprolines n. Plural of hydroxyproline. • HYDROXYPROLINE n. an amino acid. | 
| HYPERPYREXIAL | • hyperpyrexial adj. Exhibiting or relating to hyperpyrexia. • HYPERPYREXIAL adj. showing hyperpyrexia, an extremely high fever. | 
| LEXICOGRAPHER | • lexicographer n. One who writes or compiles a dictionary. • LEXICOGRAPHER n. an author or editor of a dictionary. | 
| LEXICOGRAPHERS | • lexicographers n. Plural of lexicographer. • LEXICOGRAPHER n. an author or editor of a dictionary. | 
| PEROXYSULPHURIC | • PEROXYSULPHURIC adj. as in peroxysulphuric acid. | 
| PYRRHULOXIA | • pyrrhuloxia n. Cardinalis sinuatus (desert cardinal), a North American bird with grey and red plumage. • Pyrrhuloxia prop.n. (Archaic) A taxonomic genus within the family Fringillidae – certain birds similar to cardinals, notably… • PYRRHULOXIA n. a grey-and-pink crested bunting of Central and SW North America, with a short parrot-like bill. | 
| PYRRHULOXIAS | • pyrrhuloxias n. Plural of pyrrhuloxia. • PYRRHULOXIA n. a grey-and-pink crested bunting of Central and SW North America, with a short parrot-like bill. | 
| ULTRAORTHODOX | • ultraorthodox adj. Very orthodox, chiefly among Jewish sects. • ultra-Orthodox adj. (Of a Jew) Very strictly observant; Haredi; being either Hasidic or Litvish (Misnagdic). • ULTRAORTHODOX adj. extremely orthodox. | 
| XENARTHRAL | • xenarthral adj. (Zoology) Having unusual joints. • XENARTHRAL adj. having additional facets on the dorsolumbar vertebrae, like sloths, anteaters and armadillos. | 
| XEROGRAPHICALLY | • xerographically adv. In a xerographic way; by xerography. • XEROGRAPHIC adv. relating to xerography. | 
| XYLOGRAPHER | • xylographer n. A person who makes xylographs. • XYLOGRAPHER n. one who practises xylography, the art of making engravings on wood. | 
| XYLOGRAPHERS | • xylographers n. Plural of xylographer. • XYLOGRAPHER n. one who practises xylography, the art of making engravings on wood. | 
| XYLOPYROGRAPHY | • xylopyrography n. (Art) The art of burning pictures onto wood. • XYLOPYROGRAPHY n. engraving designs on wood with hot poker. |