| AUXOSPORES | • auxospores n. Plural of auxospore. • AUXOSPORE n. a diatom cell before its siliceous wall is formed. |
| EXPANSIONS | • expansions n. Plural of expansion. • EXPANSION n. the act of expanding. |
| EXTRADOSES | • extradoses n. Plural of extrados. • EXTRADOS n. (French) the outer curve of an arch. |
| EXTRAPOSES | • extraposes v. Third-person singular simple present indicative form of extrapose. • EXTRAPOSE v. to move an item normally positioned within a phrase or sentence to the end, to focus attention on it. |
| JUXTAPOSES | • juxtaposes v. Third-person singular simple present indicative form of juxtapose. • JUXTAPOSE v. to place side by side. |
| OXYGENASES | • oxygenases n. Plural of oxygenase. • OXYGENASE n. an enzyme. |
| OXYURIASES | • OXYURIASIS n. pinworm infestation. |
| SARDONYXES | • sardonyxes n. Plural of sardonyx. • SARDONYX n. (Greek) an onyx with alternate layers of sard and other mineral. |
| SAUCEBOXES | • sauceboxes n. Plural of saucebox. • SAUCEBOX n. a saucy, impudent person; esp. a pert child, also SAUCEPOT. |
| SAXOPHONES | • saxophones n. Plural of saxophone. • SAXOPHONE n. a jazz and dance band instrument with a reed, an S-shaped (properly metal) tube, and about twenty finger-keys. |
| SEXAHOLICS | • sexaholics n. Plural of sexaholic. • SEXAHOLIC n. someone addicted to sex. |
| SMALLPOXES | • smallpoxes n. Plural of smallpox. • SMALLPOX n. a virus disease. |
| SNEAKBOXES | • sneakboxes n. Plural of sneakbox. • SNEAKBOX n. a small boat masked with brush and weeds that is used for wildfowl hunting. |
| SWEATBOXES | • sweatboxes n. Plural of sweatbox. • sweat␣boxes n. Plural of sweat box. • SWEATBOX n. a small enclosure in which one is made to sweat. |
| TROUSSEAUX | • trousseaux n. Plural of trousseau. • TROUSSEAU n. (French) clothes collected by a bride for her marriage. |
| XENOBLASTS | • xenoblasts n. Plural of xenoblast. • XENOBLAST n. a type of mineral deposit. |
| XEROSTOMAS | • XEROSTOMA n. excessive dryness of the mouth due to insufficient secretions, also XEROSTOMIA. |