13-letter words containing r, a, u
- housebreaking — to train (a pet) to excrete outdoors or in a specific place.
- household art — any of the skills necessary to the efficient running of a household, as cooking or keeping a family budget.
- housepainters — Plural form of housepainter.
- housetraining — Present participle of housetrain.
- housewarmings — Plural form of housewarming.
- housing start — an instance of beginning the construction of a dwelling.
- hubli-dharwad — a city in Karnataka, SW India: the union of two cities, Hubli and Dharwar.
- hubli-dharwar — city in SW India: pop. 648,000
- hubristically — in a presumptuous or arrogant manner
- hudson strait — a strait connecting Hudson Bay and the Atlantic. 450 miles (725 km) long; 100 miles (160 km) wide.
- humanitarians — Plural form of humanitarian.
- hunt saboteur — A hunt saboteur is someone who tries to stop a hunt from taking place or being successful because they believe it is cruel to the animal being hunted.
- hunter trials — a test for hunters held under the auspices of a hunt, in which the course is laid with obstacles to simulate actual hunting conditions.
- hunting chair — a chair having a sliding frame in front serving as a footrest.
- hyaluronidase — Biochemistry. a mucolytic enzyme found in the testes, in snake venom, and in hemolytic streptococci and certain other bacteria, that decreases the viscosity of the intercellular matrix by breaking down hyaluronic acid.
- hydraulic ram — a device by which the energy of descending water is utilized to raise a part of the water to a height greater than that of the source.
- hydraulically — operated by, moved by, or employing water or other liquids in motion.
- hydraulicking — a type of mining that uses water to move rock
- hydrocephalus — 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.
- hydrofracture — (geology) Rock fracture caused by the pressure of freezing water.
- hydrosulphate — a salt formed by the direct union of sulfuric acid with an organic base, especially an alkaloid, and usually more soluble than the base.
- hypercautious — Especially or unreasonably cautious.
- hypermutation — (uncountable) Frequent mutation.
- hypersurfaces — Plural form of hypersurface.
- hyperurbanism — a pronunciation or grammatical form or usage produced by a speaker of one dialect according to an analogical rule formed by comparison of the speaker's own usage with that of another, more prestigious, dialect and often applied in an inappropriate context, especially in an effort to avoid sounding countrified, rural, or provincial, as in the pronunciation of the word two (to̅o̅) as (tyo̅o̅).
- hyperuricemia — an excess of uric acid in the blood, often producing gout.
- hypervascular — pertaining to, composed of, or provided with vessels or ducts that convey fluids, as blood, lymph, or sap.
- hyracotherium — eohippus.
- hysteranthous — relating to a plant whose flowers open before its leaves
- ichthyosaurus — ichthyosaur.
- ideal mixture — An ideal mixture is a mixture in which the concentration of any part taken from it is the same as the average for the whole.
- illocutionary — pertaining to a linguistic act performed by a speaker in producing an utterance, as suggesting, warning, promising, or requesting.
- illustratable — Capable of being illustrated.
- illustrations — Plural form of illustration.
- immunotherapy — treatment designed to produce immunity to a disease or enhance the resistance of the immune system to an active disease process, as cancer.
- imperturbable — incapable of being upset or agitated; not easily excited; calm: imperturbable composure.
- imperturbably — incapable of being upset or agitated; not easily excited; calm: imperturbable composure.
- importunately — urgent or persistent in solicitation, sometimes annoyingly so.
- in particular — of or relating to a single or specific person, thing, group, class, occasion, etc., rather than to others or all; special rather than general: one's particular interests in books.
- inarticulated — Not articulated; not connected by a joint.
- inaugurations — Plural form of inauguration.
- inclinatorium — an instrument invented by Robert Norman in 1576, used to determine the degree to which a magnetic needle dips towards the earth; a dipping needle
- inconquerable — That cannot be conquered; unconquerable.
- inconstruable — unable to be construed
- incorruptable — Misspelling of incorruptible.
- incouragement — Archaic form of encouragement.
- inculturation — enculturation.
- incurableness — The state or condition of being incurable.
- india drugget — drugget (def 1).
- indian runner — one of a breed of domestic ducks.