| ANTIHELIXES | • antihelixes n. Plural of antihelix. • ANTIHELIX n. the curved elevation of the cartilage of the ear, within or in front of the helix, also ANTHELIX. |
| CEPHALEXINS | • cephalexins n. Plural of cephalexin. • CEPHALEXIN n. a semisynthetic cephalosporin, any of a group of wide-spectrum antibiotics derived from the fungus Cephalosporin. |
| CIPHERTEXTS | • ciphertexts n. Plural of ciphertext. • CIPHERTEXT n. enciphered text. |
| EXHAUSTIBLE | • exhaustible adj. Capable of being exhausted. • EXHAUSTIBLE adj. capable of being exhausted. |
| EXHILARATES | • exhilarates v. Third-person singular simple present indicative form of exhilarate. • EXHILARATE v. to make cheerful and excited. |
| EXSTROPHIES | • exstrophies n. Plural of exstrophy. • EXSTROPHY n. congenital eversion of a hollow organ, esp. the bladder. |
| EXTERNSHIPS | • externships n. Plural of externship. • EXTERNSHIP n. the position of an extern. |
| HETEROTAXIS | • heterotaxis n. An abnormal structural arrangement. • HETEROTAXIS n. the anomalous arrangement of body parts. |
| HEXAMERISMS | • HEXAMERISM n. the state of being hexamerous. |
| HEXAMETRISE | • HEXAMETRISE v. to put into hexameters, also HEXAMETRIZE. |
| HEXAMETRIST | • hexametrist n. One who writes in hexameter. • HEXAMETRIST n. a writer of hexameters. |
| HEXOKINASES | • hexokinases n. Plural of hexokinase. • HEXOKINASE n. an enzyme. |
| HYPEROXIDES | • hyperoxides n. Plural of hyperoxide. • HYPEROXIDES n. HYPEROXIDE. |
| INEXHAUSTED | • inexhausted adj. Not exhausted. • INEXHAUSTED adj. (archaic) unexhausted, also UNEXHAUSTED. |
| SIXTEENTHLY | • sixteenthly adv. In the sixteenth place; sixteenth in a row. • SIXTEENTH adv. number sixteen in sequence. |
| XENOPHOBIES | • XENOPHOBY n. fear of foreigners, also XENOPHOBIA. |
| XEROCHASIES | • XEROCHASY n. dehiscence on drying. |
| XEROPHAGIES | • xerophagies n. Plural of xerophagy. • XEROPHAGY n. the eating of dry food, esp. food cooked without oil. |
| XEROPHILIES | • XEROPHILY n. adaptation to very dry conditions. |