13-letter words containing u, d, m, r
- foul-tempered — frequently and unnecessarily sullen or angry
- froude number — a dimensionless number used in hydrodynamics for model simulation of actual conditions
- fume cupboard — vent used in a laboratory
- glamour model — a woman who models topless or nude for photographs
- gliding lemur — flying lemur.
- golden number — a number between 1 and 19, used to indicate the position of any year in the Metonic cycle, calculated as the remainder when 1 is added to the given year and the sum is divided by 19. If the remainder is zero the number is 19
- good-humoured — having or showing a pleasant, amiable mood: a good-humored man; a good-humored remark.
- goodhumoredly — In a good-humored manner.
- gourmandizers — Plural form of gourmandizer.
- gourmandizing — Present participle of gourmandize.
- herd immunity — the immunity or resistance to a particular infection that occurs in a group of people or animals when a very high percentage of individuals have been vaccinated or previously exposed to the infection.
- here document — (operating system) Data included in a Unix shell script or Perl script using the "<<" syntax.
- 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.
- 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.
- hypochondrium — either of two regions of the abdomen, situated on each side of the epigastrium and above the lumbar regions.
- 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.
- indian summer — a period of mild, dry weather, usually accompanied by a hazy atmosphere, occurring usually in late October or early November and following a period of colder weather.
- indirect jump — (programming) A jump via an indirect address, i.e. the jump instruction contains the address of a memory location that contains the address of the next instruction to execute. The location containing the address to jump to is sometimes called a vector. Indirect jumps make normal code hard to understand because the jump target is a run-time property of the program that depends on the execution history. They are useful for, e.g. allowing user code to replace operating system code or setting up event handlers.
- inductothermy — the production of fever by means of electromagnetic induction.
- industrialism — an economic organization of society built largely on mechanized industry rather than agriculture, craftsmanship, or commerce.
- introducement — (obsolete) introduction.
- jacquard loom — a loom for producing elaborate designs in an intricate weave (Jacquard weave) constructed from a variety of basic weaves.
- kettledrummer — a drum consisting of a hollow hemisphere of brass, copper, or fiberglass over which is stretched a skin, the tension of which can be modified by hand screws or foot pedals to vary the pitch.
- lacrimal duct — either of two small ducts extending from the inner corner of each eyelid to the lacrimal sac.
- laundry-woman — laundress.
- lucid dreamer — a person who has lucid dreams, either naturally or as a result of training
- madeira sauce — a savoury sauce made with Madeira wine and served with meat
- magnetic drum — a cylinder coated with magnetic material, on which data and programs can be stored.
- mandarin duck — a crested Asian duck, Aix galericulata, having variegated purple, green, chestnut, and white plumage.
- mandibuliform — Having the form of a mandible; - said especially of the maxill\u00e6 of an insect when hard and adapted for biting.
- many-coloured — having many colours
- mass murderer — A mass murderer is someone who deliberately kills a large number of people illegally.
- mcmurdo sound — an inlet of Ross Sea, in Antarctica, N of Victoria Land.
- measuring rod — ruler, gauge, stick for measuring
- meat products — foods that consist of or contain meat
- medium bomber — a moderately large airplane capable of carrying large bomb loads for moderate distances at medium altitudes, especially one having a gross loaded weight of 100,000 to 250,000 pounds (45,000 to 113,000 kg).
- medium quarto — a size of book, about 9½ × 12 inches (24 × 30 cm), untrimmed. Abbreviation: medium 4to.
- medium-priced — having a price that is neither too high or too low
- medullary ray — (in the stems of woody plants) one of the vertical bands or plates of unspecialized tissue that radiate between the pith and the bark.
- mercurialized — Simple past tense and past participle of mercurialize.
- middle course — an option or alternative between more extreme alternatives
- middle ground — an intermediate position, area, or recourse between two opposites or extremes; a halfway or neutral standpoint.
- middleborough — a town in SE Massachusetts.
- middlesbrough — a seaport in NE England, on the Tees estuary.
- midriff bulge — a roll of fat around your midriff
- midsummer day — the saint's day of St. John the Baptist, celebrated on June 24, being one of the four quarter days in England.
- midsummer eve — the evening preceding Midsummer Day: formerly believed to be a time when witches and other supernatural beings caused widespread mischief.
- midterm blues — the tendency of electorate to grow disillusioned with government around halfway through its term of office
- milk products — dairy produce, items made with milk