| EXOCYTOSE | • exocytose v. To undergo exocytosis. • EXOCYTOSE v. to secrete a substance from within a cell. |
| EXOSMOTIC | • exosmotic adj. Relating to exosmosis. • EXOSMOTIC adj. pertaining to exosmose, osmosis outwards. |
| EXOSTOSES | • exostoses n. Plural of exostosis. • EXOSTOSIS n. any protuberance of a bone which is not natural. |
| EXOSTOSIS | • exostosis n. A benign bony growth, often covered with cartilage, on the surface of a bone or tooth. • EXOSTOSIS n. any protuberance of a bone which is not natural. |
| EXOTOXINS | • exotoxins n. Plural of exotoxin. • EXOTOXIN n. a secreted toxin. |
| EXPOSITOR | • expositor n. A person who expounds; a commentator. • EXPOSITOR n. one who, or that which, exposits. |
| HOMOTAXES | • HOMOTAXIS n. coincidence in order of organic succession but not necessarily in time. |
| NEOTOXINS | • NEOTOXIN n. any harmful substance in the environment causing illness or allergy. |
| ORTHOAXES | • ORTHOAXIS n. in crystallography, the orthodiagonal. |
| OXTONGUES | • oxtongues n. Plural of oxtongue. • OXTONGUE n. any of several plants with rough tongue-shaped leaves. |
| OXYTROPES | • oxytropes n. Plural of oxytrope. • OXYTROPE n. a genus of plants in the legume family, including locoweed. |
| POSTBOXES | • postboxes n. Plural of postbox, an alternative spelling of post box. • post-boxes n. Plural of post-box. • post␣boxes n. Plural of post box. |
| TEXTBOOKS | • textbooks n. Plural of textbook. • TEXTBOOK n. a book used in the study of a subject. |
| TOOLBOXES | • toolboxes n. Plural of toolbox. • TOOLBOX n. a box for tools. |
| TOXICOSES | • toxicoses n. Plural of toxicosis. • TOXICOSIS n. a pathological condition caused by a poison or toxin. |
| XEROSTOMA | • xerostoma n. (Obsolete) The condition of having a dry mouth. • XEROSTOMA n. excessive dryness of the mouth due to insufficient secretions, also XEROSTOMIA. |
| ZOOTAXIES | • ZOOTAXY n. systematic zoology. |