| DEEMSTERSHIPS | • DEEMSTERSHIP n. the office of deemster. |
| DEMOGRAPHISTS | • DEMOGRAPHIST n. a demographer. |
| DIASTROPHISMS | • diastrophisms n. Plural of diastrophism. • DIASTROPHISM n. the process by which continents, mountains, ocean beds, folds and faults are formed. |
| DICHROMATISMS | • dichromatisms n. Plural of dichromatism. • DICHROMATISM n. partial color blindness in which only two colors are perceptible. |
| DITHYRAMBISTS | • DITHYRAMBIST n. one who sings dithyrambic hymns. |
| DRAFTSMANSHIP | • draftsmanship n. The art or craft of a draftsman. • draftsmanship n. The skill of drawing. • DRAFTSMANSHIP n. the craft of the draftsman, also DRAUGHTSMANSHIP. |
| ENDOTHERMISMS | • ENDOTHERMISM n. the formation of a chemical compound with the absorption of heat. |
| GOLDSMITHRIES | • GOLDSMITHRY n. the craft of a goldsmith, also GOLDSMITHERY. |
| HEADMISTRESSY | • headmistressy adj. Resembling or characteristic of a headmistress. • HEADMISTRESSY adj. like a headmistress, bossy. |
| HYDROSOMATOUS | • HYDROSOMATOUS adj. of or like hydrosomata. |
| HYDROTROPISMS | • hydrotropisms n. Plural of hydrotropism. • HYDROTROPISM n. growth in the direction of water. |
| MEDIATORSHIPS | • mediatorships n. Plural of mediatorship. • MEDIATORSHIP n. the office of mediator. |
| METHYSERGIDES | • METHYSERGIDE n. a serotonin used in the treatment and prevention of migraine headaches. |
| MITHRIDATISES | • mithridatises v. Third-person singular simple present indicative form of mithridatise. • MITHRIDATISE v. to acquire immunity to a poison acquired by taking gradually increased doses of it, also MITHRIDATIZE. |
| MITHRIDATISMS | • MITHRIDATISM n. immunity to poison by taking increasingly large doses. |
| RADIOCHEMISTS | • radiochemists n. Plural of radiochemist. • RADIOCHEMIST n. one who practises radiochemistry. |
| THUNDERSTORMS | • thunderstorms n. Plural of thunderstorm. • THUNDERSTORM n. a storm featuring thunder. |