| COEXECUTORS | • coexecutors n. Plural of coexecutor. • COEXECUTOR n. a joint executor. |
| EXFOLIATORS | • exfoliators n. Plural of exfoliator. • EXFOLIATOR n. an exfoliating agent. |
| EXONERATORS | • exonerators n. Plural of exonerator. • EXONERATOR n. one who exonerates or frees from obligation. |
| NEOCORTEXES | • neocortexes n. Plural of neocortex. • NEOCORTEX n. the back of the cortex. |
| NEUROTOXINS | • neurotoxins n. Plural of neurotoxin. • NEUROTOXIN n. a nerve poison. |
| ORTHODOXIES | • orthodoxies n. Plural of orthodoxy. • ORTHODOXY n. the state of being orthodox. |
| ORTHOPRAXES | • ORTHOPRAXIS n. correct practice in religion. |
| ORTHOREXIAS | • ORTHOREXIA n. an eating disorder characterized by excessive focus on eating healthy foods. |
| OXYGENATORS | • oxygenators n. Plural of oxygenator. • OXYGENATOR n. an oxidizer. |
| PAROXYTONES | • paroxytones n. Plural of paroxytone. • PAROXYTONE n. a word having an acute accent on the penultimate syllable. |
| PROTHORAXES | • prothoraxes n. Plural of prothorax. • PROTHORAX n. the first or anterior segment of the thorax in insects. |
| PROTOXYLEMS | • protoxylems n. Plural of protoxylem. • PROTOXYLEM n. the first part of the xylem to be formed. |
| STRONGBOXES | • strongboxes n. Plural of strongbox. • STRONGBOX n. a box for holding valuables. |
| TETROTOXINS | • TETROTOXIN n. a deadly nerve poison found in a species of Japanese puffer fish, also TETRODOTOXIN. |
| THIXOTROPES | • THIXOTROPE n. a thixotropic substance. |
| TROPHOTAXES | • TROPHOTAXIS n. chemotaxis and chemotropism where the stimulating substance is food. |
| XEROSTOMATA | • XEROSTOMA n. excessive dryness of the mouth due to insufficient secretions, also XEROSTOMIA. |
| XEROSTOMIAS | • xerostomias n. Plural of xerostomia. • XEROSTOMIA n. excessive dryness of the mouth due to insufficient secretions, also XEROSTOMA. |