| COMMUTATORS | • commutators n. Plural of commutator. • COMMUTATOR n. a thing which commutes; specifically a device for commutating an electric current. |
| CONSUMMATOR | • consummator n. One who consummates. • CONSUMMATOR n. one who consummates. |
| GAMOTROPISM | • GAMOTROPISM n. the tendency of gametes to attract each other. |
| HOMEOTHERMS | • homeotherms n. Plural of homeotherm. • HOMEOTHERM n. an organism that maintains the same temperature. |
| HOMOEROTISM | • homoerotism n. Synonym of homoeroticism. • HOMOEROTISM n. homosexuality, also HOMOEROTICISM. |
| MESOTHORIUM | • mesothorium n. (Physics) Any product of the radioactive decay of thorium, mainly isotopes of radium and actinium. • MESOTHORIUM n. an old name for either of two radioactive elements. |
| MICROTOMIES | • microtomies n. Plural of microtomy. • MICROTOMY n. the art of using the microtome. |
| MICROTOMIST | • microtomist n. One who is skilled in or practises microtomy. • MICROTOMIST n. one who uses a microtome. |
| MORATORIUMS | • moratoriums n. Plural of moratorium. • MORATORIUM n. a legal authorization to a debtor to postpone payment for a certain time; the period of such a postponement. |
| MOTORMOUTHS | • motormouths n. Plural of motormouth. • motor-mouths n. Plural of motor-mouth. • motor␣mouths n. Plural of motor mouth. |
| OMBROMETERS | • ombrometers n. Plural of ombrometer. • OMBROMETER n. a rain-gauge. |
| OSMOMETRIES | • OSMOMETRY n. the use of an osmometer, an instrument for measuring osmotic pressure. |
| OVERCOMMITS | • overcommits v. Third-person singular simple present indicative form of overcommit. • OVERCOMMIT v. to commit excessively. |
| POSTMORTEMS | • postmortems n. Plural of postmortem. • post-mortems n. Plural of post-mortem. • post␣mortems n. Plural of post mortem. |
| THERMOFORMS | • thermoforms v. Third-person singular simple present indicative form of thermoform. • THERMOFORM v. to give a final shape to plastics by heat and pressure. |
| TROMOMETERS | • tromometers n. Plural of tromometer. • TROMOMETER n. an instrument for detecting or measuring faint tremors caused by an earthquake. |