| ANTHELIXES | • anthelixes n. Plural of anthelix. • ANTHELIX n. (Greek) the inner curved edge of the external ear. |
| EXHALATION | • exhalation n. The act or process of exhaling; breathing out. • exhalation n. That which is exhaled, or which rises in the form of vapor, fume, or steam. • exhalation n. A bright phenomenon; a meteor. |
| EXHILARANT | • exhilarant adj. Exciting joy, mirth, or pleasure. • exhilarant n. That which exhilarates. • EXHILARANT adj. exciting joy, mirth, or pleasure. |
| EXHILARATE | • exhilarate v. (Transitive) To cheer, to cheer up, to gladden, to make happy. • exhilarate v. (Transitive) To excite, to thrill. • EXHILARATE v. to make cheerful and excited. |
| EXOTHERMAL | • exothermal adj. Exothermic. • EXOTHERMAL adj. of a chemical reaction, giving out heat, also EXOTHERMIC. |
| HELIOTAXES | • HELIOTAXIS n. the response of an organism to the sun's rays. |
| HELIOTAXIS | • heliotaxis n. (Biology) Phototaxis related to the sun. • HELIOTAXIS n. the response of an organism to the sun's rays. |
| HEXACTINAL | • hexactinal adj. (Biology) Having six rays. • HEXACTINAL adj. having six rays. |
| HEXAMETRAL | • hexametral adj. Hexametric. • HEXAMETRAL adj. like a hexameter, also HEXAMETRIC, HEXAMETRICAL. |
| HEXASTYLES | • hexastyles n. Plural of hexastyle. • HEXASTYLE n. a portico having six columns in front. |
| HEXATHLONS | • HEXATHLON n. an athletic contest comprising six events. |
| HEXAVALENT | • hexavalent adj. (Chemistry) Having an atomic valence of 6. • hexavalent adj. (Medicine) Having a vaccine valence of 6. • HEXAVALENT adj. having a valency of six. |
| HOMOTAXIAL | • homotaxial adj. (Biology) Relating to homotaxis. • HOMOTAXIAL adj. showing homotaxis, also HOMOTAXIC. |
| ORTHODOXLY | • orthodoxly adv. In a correct or proper way; conventionally; correctly. • orthodoxly adv. In a religiously orthodox way; in accordance with accepted religious doctrine. • ORTHODOX adv. sound in doctrine. |
| PHYLLOTAXY | • phyllotaxy n. Phyllotaxis. • PHYLLOTAXY n. the arrangement of leaves on a stem and in relation to one another, also PHYLLOTAXIS. |
| XANTHOPHYL | • xanthophyl n. Dated form of xanthophyll. • XANTHOPHYL n. a yellow carotenoid pigment found with chlorophyll in green plants and in egg yolks, also XANTHOPHYLL. |
| XANTHOXYLS | • XANTHOXYL n. a plant of a genus of the rue family found in Brazil, in particular the prickly-ash or Hercules club, also ZANTHOXYL, ZANTHOXYLUM. |
| XENARTHRAL | • xenarthral adj. (Zoology) Having unusual joints. • XENARTHRAL adj. having additional facets on the dorsolumbar vertebrae, like sloths, anteaters and armadillos. |
| XENOLITHIC | • xenolithic adj. Being or pertaining to a xenolith. • XENOLITHIC adj. of or like a xenolith, a rock fragment foreign to the igneous mass in which it occurs. |
| ZANTHOXYLS | • ZANTHOXYL n. a plant of a genus of the rue family found in Brazil, in particular the prickly-ash or Hercules club, also XANTHOXYL, ZANTHOXYLUM. |