13-letter words containing o, d, r, u
- harold burton — Harold Hitz [hits] /hɪts/ (Show IPA), 1888–1964, associate justice of the U.S. Supreme Court 1945–58.
- hazardousness — The condition of being hazardous.
- here document — (operating system) Data included in a Unix shell script or Perl script using the "<<" syntax.
- high-coloured — (of the complexion) deep red or purplish; florid
- hold a grudge — be resentful
- hollow-ground — ground so as to produce a concave surface or surfaces behind a cutting edge: the hollow-ground blade of an ice skate.
- holy saturday — the Saturday in Holy Week.
- holy thursday — Ascension Day.
- holyroodhouse — a royal palace in Edinburgh in Scotland: official residence of the Queen when in Scotland; begun in 1501 by James IV of Scotland; scene of the murder of David Rizzio in 1566
- honey buzzard — a long-tailed Old World hawk, Pernis apivorus, that feeds on the larvae of bees as well as on small rodents, reptiles, and insects.
- horned scully — a tapered block of concrete with projecting steel rails, placed under water to tear holes in the bottoms of boats.
- hors d'oeuvre — a small bit of appetizing food, as spicy meat, fish, cheese, or a preparation of chopped or creamed foods, often served on crackers or small pieces of toast, for eating at cocktail parties or other gatherings where drinks are served with no other food.
- hors doeuvres — Hors d'oeuvres are small amounts of food served before the main course of a meal.
- house-trained — housebroken.
- housed string — a string of a stair (housed stair) receiving the ends of the risers or treads in a series of housings.
- household art — any of the skills necessary to the efficient running of a household, as cooking or keeping a family budget.
- hudson strait — a strait connecting Hudson Bay and the Atlantic. 450 miles (725 km) long; 100 miles (160 km) wide.
- hunting sword — a short, light saber of the 18th century, having a straight or slightly curved blade.
- 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.
- hybrid vigour — the increased size, strength, etc, of a hybrid as compared to either of its parents
- 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.
- hydromedusoid — a jellyfish or something resembling a jellyfish that lives in water
- hydronium ion — the hydrogen ion bonded to a molecule of water, H 3 O + , the form in which hydrogen ions are found in aqueous solution.
- hydrosulfides — Plural form of hydrosulfide.
- hydrosulfuric — (chemistry) Derived from hydrogen sulfide considered as hydrosulfuric acid.
- 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.
- hydrosulphide — a compound containing the univalent group –HS.
- hydrosulphite — hyposulfite (def 1).
- hydrotelluric — (chemistry) Formed by hydrogen and tellurium.
- hyperproducer — an increased or rapid producer
- hypochondrium — either of two regions of the abdomen, situated on each side of the epigastrium and above the lumbar regions.
- ill-nourished — underfed or inadequately fed
- in due course — a direction or route taken or to be taken.
- incredulously — not credulous; disinclined or indisposed to believe; skeptical.
- indo-european — a large, widespread family of languages, the surviving branches of which include Italic, Slavic, Baltic, Hellenic, Celtic, Germanic, and Indo-Iranian, spoken by about half the world's population: English, Spanish, German, Latin, Greek, Russian, Albanian, Lithuanian, Armenian, Persian, Hindi, and Hittite are all Indo-European languages. Compare family (def 14).
- indolebutyric — as in indolebutyric acid, a synthetic plant growth regulator
- inductothermy — the production of fever by means of electromagnetic induction.
- industriously — working energetically and devotedly; hard-working; diligent: an industrious person.
- inner product — Also called dot product, scalar product. the quantity obtained by multiplying the corresponding coordinates of each of two vectors and adding the products, equal to the product of the magnitudes of the vectors and the cosine of the angle between them.
- inodorousness — the quality of being inodorous
- insubordinate — not submitting to authority; disobedient: an insubordinate soldier.
- introducement — (obsolete) introduction.
- introductions — Plural form of introduction.
- jacquard loom — a loom for producing elaborate designs in an intricate weave (Jacquard weave) constructed from a variety of basic weaves.
- jodhpuri coat — a coat worn by men in India, similar to but shorter than a sherwani
- junior doctor — a doctor in postgraduate training
- jurisdictions — Plural form of jurisdiction.
- labrador duck — an extinct sea duck, Camptorhynchus labradorius, of northern North America, having black and white plumage.
- laundry-woman — laundress.