12-letter words containing p, u, r, e
- keraunograph — an instrument for recording thunderstorms by detecting the radio waves generated
- ketone group — the characteristic group occurring in ketones that consists of the carbonyl group attached to two alkyl groups.
- kupfernickel — (archaic) cupronickel.
- laureateship — a person who has been honored for achieving distinction in a particular field or with a particular award: a Nobel laureate.
- lectureships — Plural form of lectureship.
- leprosariums — Plural form of leprosarium.
- leptospermum — any of various shrubs or trees of the genus Leptospermum, of the myrtle family, native to Australia and adjacent areas and often cultivated as ornamentals in milder climates.
- lesser scaup — a diving duck, Aythya marila, of Europe and America, having a black-and-white plumage in the male
- life support — equipment to sustain a patient's life
- life-support — of or relating to equipment or measures that sustain or artificially substitute for essential body functions, as breathing or disposal of body wastes: Without life-support equipment, the patient might die.
- ligniperdous — (of insects) wood-destroying
- liopleurodon — Any of the genus Liopleurodon of large carnivorous marine plesiosaurs, apex predators of the Middle to Late Jurassic seas that covered Europe.
- lithospermum — any annual or perennial herbs and small shrubs of the genus lithospermum, of the borage family, native to Europe, N America, and northern Asia, and having white, blue, or yellow flowers
- litmus paper — a strip of paper impregnated with litmus, used as a chemical indicator.
- liverpudlian — a seaport in Merseyside, in W England, on the Mersey estuary.
- loudspeakers — Plural form of loudspeaker, especially a pair for a left and right channel.
- low-pressure — having or involving a low or below-normal pressure, as steam or water.
- luteotrophic — affecting the corpus luteum.
- macropterous — having long or large wings or fins.
- make-up girl — a woman or girl who applies cosmetics to a person, such as to a model or actor
- makeup water — Makeup water is water which is added to compensate for losses, especially losses caused by evaporation.
- maple butter — thickened maple syrup
- mare vaporum — (Sea of Vapors) a dark plain in the first quadrant and near the center of the face of the moon: about 39,000 sq. mi. (101,000 sq. km).
- mass-produce — to produce or manufacture (goods) in large quantities, especially by machinery.
- medium strip — median strip.
- meganthropus — a proposed genus of extinct, late lower Pleistocene primates based on two large lower jaws found in Java, and believed to be either Australopithecine or human.
- mesomorphous — mesomorphic
- metacomputer — an interconnected and balanced set of computers that operate as a single unit
- metamorphous — metamorphic.
- methyl group — the univalent group CH 3 −, derived from methane.
- microcapsule — a tiny capsule, 20–150 microns in diameter, used for slow-release application of drugs, pesticides, flavors, etc.
- micropterous — (of certain animals, esp some types of ant) having small reduced wings
- minicomputer — a computer with processing and storage capabilities smaller than those of a mainframe but larger than those of a microcomputer.
- mispronounce — Pronounce (a word) incorrectly.
- mitteleuropa — Central Europe.
- monospermous — having one seed.
- morris jesup — Cape, a cape of N Greenland, on the Arctic Ocean, 440 miles (710 km) from the North Pole: northernmost land point in the world.
- mousetrapped — Simple past tense and past participle of mousetrap.
- muckspreader — a machine for spreading manure over farmland
- mucoproteins — Plural form of mucoprotein.
- mucopurulent — containing or composed of mucus and pus.
- multipartite — divided into several or many parts; having several or many divisions.
- multipicture — having or involving several pictures
- multiplexers — Plural form of multiplexer.
- multipresent — able to be present in several places simultaneously
- multiproblem — characterized by or experiencing several problems
- multipronged — having or composed of several prongs: a multipronged electric plug.
- multipurpose — able to be used for several purposes: a multipurpose lawn spray.
- name capture — (reduction) In beta reduction, when a term containing a free occurrence of a variable v is substituted into another term where v is bound the free v becomes spuriously bound or "captured". E.g. (\ x . \ y . x y) y --> \ y . y y (WRONG) This problem arises because two distinct variables have the same name. The most common solution is to rename the bound variable using alpha conversion: (\ x . \ y' . x y') y --> \ y' . y y' Another solution is to use de Bruijn notation. Note that the argument expression, y, contained a free variable. The whole expression above must therefore be notionally contained within the body of some lambda abstraction which binds y. If we never reduce inside the body of a lambda abstraction (as in reduction to weak head normal form) then name capture cannot occur.
- nanocomputer — (architecture) /nan'oh-k*m-pyoo'tr/ A computer with molecular-sized switching elements. Designs for mechanical nanocomputers which use single-molecule sliding rods for their logic have been proposed. The controller for a nanobot would be a nanocomputer. Some nanocomputers can also be called quantum computers because quantum physics plays a major role in calculations. Richard P. Feynman is still cited today for his work in this area.