| GRANDMOTHERS | • grandmothers n. Plural of grandmother. • grand-mothers n. Plural of grand-mother. • GRANDMOTHER n. the mother of one's mother or father. |
| HYDROMETEORS | • hydrometeors n. Plural of hydrometeor. • HYDROMETEOR n. a general term for the aqueous phenomena of the atmosphere, as rain, snow, sleet, hail. |
| HYDROMETRIES | • HYDROMETRY n. the art of determining the specific gravity of liquids, and thence the strength of spirituous liquors, saline solutions, etc. |
| HYDROTHERMAL | • hydrothermal adj. Of, or relating to hot water. • hydrothermal adj. (Geology) Of or relating to emanations of hot water that are rich in minerals, or to the rocks formed from them. • HYDROTHERMAL adj. designating naturally hot underground water that has geological effects. |
| HYDROTROPISM | • hydrotropism n. (Biology) The movement of a plant (or other organism) in response to water, either towards or away from water. • HYDROTROPISM n. growth in the direction of water. |
| MOTHERBOARDS | • motherboards n. Plural of motherboard. • MOTHERBOARD n. the board containing the main circuits of an electronic device, especially in computers. |
| MOUTHBREEDER | • mouthbreeder n. (Zoology) Synonym of mouthbrooder. • MOUTHBREEDER n. a fish that carries eggs and young in its mouth, also MOUTHBROODER. |
| MOUTHBROODER | • mouthbrooder n. (Zoology) Any animal that cares for its offspring, either eggs or juveniles, by holding them in its… • MOUTHBROODER n. a cichlid fish that carries its young in its mouth for protection, also MOUTHBREEDER. |
| ORTHODROMICS | • orthodromics n. Orthodromic navigation. • ORTHODROMICS n. the act or art of sailing on a great circle, also ORTHODROMY. |
| ORTHODROMIES | • ORTHODROMY n. the act or art of sailing on a great circle, also ORTHODROMICS. |
| RADIOTHORIUM | • radiothorium n. (Physics) The radioactive isotope thorium-228. • RADIOTHORIUM n. a radioactive isotope of thorium with the mass number 228. |
| ROUTEMARCHED | • routemarched v. Simple past tense and past participle of routemarch. • route-marched v. Simple past tense and past participle of route-march. • route␣marched v. Simple past tense and past participle of route march. |
| TETRADRACHMA | • tetradrachma n. Alternative form of tetradrachm. • tetradrachma n. Plural of tetradrachmon. |
| TETRADRACHMS | • tetradrachms n. Plural of tetradrachm. • TETRADRACHM n. (Greek) a unit of Greek currency. |
| THERMOFORMED | • thermoformed v. Simple past tense and past participle of thermoform. • THERMOFORM v. to give a final shape to plastics by heat and pressure. |
| THIRDSTREAMS | • THIRDSTREAM n. music combining jazz and classical elements. |
| THREADMAKERS | • threadmakers n. Plural of threadmaker. • THREADMAKER n. one who makes thread. |
| THUNDERSTORM | • thunderstorm n. A storm consisting of thunder and lightning produced by a cumulonimbus, usually accompanied with heavy… • THUNDERSTORM n. a storm featuring thunder. |
| WORDSMITHERY | • wordsmithery n. The work of a wordsmith; skilful use of words. • WORDSMITHERY n. the craft of the wordsmith. |