| EXAMETRES | • exametres n. Plural of exametre. • EXAMETRE n. ten to the power of eighteen metres. |
| EXANTHEMS | • exanthems n. Plural of exanthem. • EXANTHEM n. a skin eruption, esp. accompanied by fever, also EXANTHEMA. |
| EXHUMATES | • exhumates v. Third-person singular simple present indicative form of exhumate. • EXHUMATE v. to dig out from the earth, also EXHUME. |
| EXPERTISM | • expertism n. A policy of consulting experts. • EXPERTISM n. possession of specific skills, also EXPERTNESS. |
| EXTREMALS | • extremals n. Plural of extremal. • EXTREMAL n. a clause which limits recursion. |
| EXTREMEST | • extremest adj. Superlative form of extreme: most extreme. • EXTREME adj. farthest from centre. |
| EXTREMISM | • extremism n. Extreme ideas or actions, primarily in politics or religion. • EXTREMISM n. the taking of an extreme position. |
| EXTREMIST | • extremist n. A person who holds extreme views, especially one who advocates such views; a radical or fanatic. • extremist adj. Holding extreme views, especially on a political or religious subject. • extremist adj. Of or relating to extremism. |
| EXTREMUMS | • extremums n. Plural of extremum. • EXTREMUM n. (Latin) a maximum or minimum of a mathematical function. |
| FLEXTIMES | • FLEXTIME n. a system that allows flexible working hours, also FLEXITIME. |
| KETOXIMES | • ketoximes n. Plural of ketoxime. • KETOXIME n. an oxime product of a ketone reacting with hydroxylamine. |
| LUXMETERS | • luxmeters n. Plural of luxmeter. • LUXMETER n. an instrument for measuring illumination. |
| METHOXIES | • METHOXY n. a drug that is claimed to increase muscle size and is taken as a supplement by some athletes. |
| OXIMETERS | • oximeters n. Plural of oximeter. • OXIMETER n. a photoelectric instrument for measuring the oxygen saturation of the blood. |
| SIXTEENMO | • sixteenmo n. Sextodecimo (as a paper size in printing). • SIXTEENMO n. a book size 5 5/8 in. x 4 3/8 in. (abbreviated as 16mo.), also SEXTODECIMO. |
| XENOTIMES | • xenotimes n. Plural of xenotime. • XENOTIME n. (Greek) a phosphate of yttrium occurring in yellowish-brown tetragonal crystals. |