| CHERRYWOOD | • cherrywood n. A hardwood obtained from the cherry tree, valued for use in furniture and other woodworking applications. • cherry␣wood n. Alternative spelling of cherrywood. |
| DEHYDRATOR | • dehydrator n. (Chemistry) A drying agent. • dehydrator n. A device that removes water from a material. • DEHYDRATOR n. a dehydrating agent, also DEHYDRATER. |
| DRAYHORSES | • DRAYHORSE n. a horse used to pull a dray. |
| HYDROCHORE | • hydrochore n. A plant whose spores, seeds, or fruits are dispersed by water. • HYDROCHORE n. a plant disseminated by water. |
| HYDROCORAL | • hydrocoral n. Any hydrozoan, of the order Anthoathecata, that has a calcareous skeleton and so resembles a coral. • HYDROCORAL n. any hydrozoan coelenterate of an order which includes the millepores. |
| HYDROCRACK | • hydrocrack v. (Organic chemistry) To convert hydrocarbons by hydrocracking. • HYDROCRACK v. to crack hydrocarbons in the presence of hydrogen. |
| HYDROGRAPH | • hydrograph n. A graph of flow past a point in a river versus time. • hydrograph n. A graph of water table versus time. • HYDROGRAPH n. a graph of variation of stream flow over time. |
| HYDROLYSER | • hydrolyser n. That which hydrolyses. • HYDROLYSER n. an agent that hydrolyses, also HYDROLYZER. |
| HYDROLYZER | • hydrolyzer n. (American spelling) Alternative form of hydrolyser. • HYDROLYZER n. an agent that hydrolyzes, also HYDROLYSER. |
| HYDROMETER | • hydrometer n. An instrument that floats in a liquid and measures its specific gravity on a scale. • HYDROMETER n. an instrument for measuring the specific gravity of liquids. |
| HYDROMETRY | • hydrometry n. (Physics) The branch of hydrostatics dealing with the measurement of specific gravity using hydrometers. • HYDROMETRY n. the art of determining the specific gravity of liquids, and thence the strength of spirituous liquors, saline solutions, etc. |
| HYDROPOWER | • hydropower n. Hydroelectric power. • HYDROPOWER n. water power. |
| HYDROSERES | • hydroseres n. Plural of hydrosere. • HYDROSERE n. an ecological sere originating in an aquatic habitat. |
| ORTHODROMY | • orthodromy n. The act or art of sailing on a great circle. • ORTHODROMY n. the act or art of sailing on a great circle, also ORTHODROMICS. |
| PORPHYROID | • porphyroid n. (Mineralogy) A crystalline and schistose rock containing porphyritic crystals of feldspar. • PORPHYROID n. a metamorphic rock having a texture characterized by large crystals set in a finer groundmass. |
| PYRETHROID | • pyrethroid n. (Organic chemistry) Any of several synthetic insecticides having a structure based on pyrethrin. • PYRETHROID n. any of various synthetic compounds related to the pyrethrins, and sharing their insecticidal properties. |
| ROADWORTHY | • roadworthy adj. Being able to be driven, or suitable for driving, on the open road. • ROADWORTHY adj. able to be used on a road. • ROADWORTHY n. in South Africa, a certificate for a roadworthy vehicle. |
| TRIHYDROXY | • trihydroxy n. (Organic chemistry, in combination) Three hydroxy groups in a molecule. • TRIHYDROXY adj. having three hydroxyl groups. |