12-letter words containing d, r, y, o, a
- ferrocyanide — a salt of ferrocyanic acid, as potassium ferrocyanide, K 4 Fe(CN) 6 .
- florida keys — chain of small islands extending southwest from the S tip of Fla.
- food allergy — an allergy to a specific type of food
- food pyramid — successive levels of predation in a food chain represented schematically as a pyramid because upper levels normally consist of decreasing numbers of larger predators.
- forehandedly — Prudently, with thrift and foresight.
- formaldehyde — a colorless, toxic, potentially carcinogenic, water-soluble gas, CH 2 O, having a suffocating odor, usually derived from methyl alcohol by oxidation: used chiefly in aqueous solution, as a disinfectant and preservative, and in the manufacture of various resins and plastics.
- foundry sand — silica-based sand mixed with clay, oil, etc, to improve its cohesive strength, used in moulding
- from day one — from the very beginning
- go-away bird — a common name for a grey-plumaged lourie of the genus Corythaixoides
- gold therapy — administration of gold salts as a treatment for disease, especially rheumatoid arthritis.
- golden years — the years that follow retirement from work
- gourd family — the plant family Cucurbitaceae, characterized by tendril-bearing vines, either trailing or climbing and having alternate, palmately lobed leaves, often large yellow or greenish flowers, and many-seeded, fleshy fruit with a hard rind, and including the cucumber, gourd, melon, pumpkin, and squash.
- grand canyon — a gorge of the Colorado River in N Arizona. over 200 miles (320 km) long; 1 mile (1.6 km) deep.
- gypsum board — wallboard composed primarily of gypsum and often used as sheathing.
- handypersons — Plural form of handyperson.
- hard done by — If you feel hard done by, you feel that you have not been treated fairly.
- headstrongly — In a headstrong manner.
- hemodialyzer — artificial kidney.
- henry howard — Earl of (Henry Howard) 1517?–47, English poet.
- heterodactyl — having the first and fourth toes directed backward, and the second and third forward, as in trogons.
- hidrocystoma — An adenoma of the sweat glands.
- hoary-headed — having the gray or white hair of advanced age.
- holidaymaker — vacationer.
- home and dry — If you say that someone is, in British English home and dry, or in American English home free, you mean that they have been successful or that they are certain to be successful.
- honey badger — ratel.
- how dare you — You say 'how dare you' when you are very shocked and angry about something that someone has done.
- hydatidiform — like or resembling a hydatid
- hydnocarpate — a salt or ester of hydnocarpic acid.
- hydrobromate — (chemistry) hydrobromide.
- hydrocarbons — any of a class of compounds containing only hydrogen and carbon, as an alkane, methane, CH 4 , an alkene, ethylene, C 2 H 4 , an alkyne, acetylene, C 2 H 2 , or an aromatic compound, benzene, C 6 H 6 .
- hydrocephaly — an accumulation of serous fluid within the cranium, especially in infancy, due to obstruction of the movement of cerebrospinal fluid, often causing great enlargement of the head; water on the brain.
- hydrocracker — a high-pressure processing unit used for hydrocracking.
- hydrodynamic — pertaining to forces in or motions of liquids.
- hydroelastic — undergoing a change in elasticity as a result of the flow of water or another fluid
- hydrogenated — to combine or treat with hydrogen, especially to add hydrogen to the molecule of (an unsaturated organic compound).
- hydrogenates — Third-person singular simple present indicative form of hydrogenate.
- hydrographer — the science of the measurement, description, and mapping of the surface waters of the earth, with special reference to their use for navigation.
- hydrographic — the science of the measurement, description, and mapping of the surface waters of the earth, with special reference to their use for navigation.
- hydrological — the science dealing with the occurrence, circulation, distribution, and properties of the waters of the earth and its atmosphere.
- hydrolysable — Alternative spelling of hydrolyzable.
- hydrolysates — Plural form of hydrolysate.
- hydrolyzable — Able to be hydrolyzed.
- hydromedusae — Irregular plural form of hydromedusa.
- hydronautics — (nautical) The science of the design and construction of ships, their engines, and their instrumentation.
- hydronically — in a hydronic manner; in a manner relating to a heating system that uses water
- hydroplaning — a seaplane.
- hydrosalpinx — A distally blocked Fallopian tube filled with serous or clear fluid.
- hydrostatics — the branch of hydrodynamics that deals with the statics of fluids, usually confined to the equilibrium and pressure of liquids.
- hydrosulfate — a salt formed by the direct union of sulfuric acid with an organic base, especially an alkaloid, and usually more soluble than the base.
- hydrotherapy — the branch of therapeutics that deals with the curative use of water.