13-letter words containing p, r, o, l, i
- laser pointer — a portable laser that emits monochromatic light over a long and narrow distance, used especially as a pointing device.
- latent period — Also, latency period. Pathology. the interval between exposure to a carcinogen, toxin, or disease-causing organism and development of a consequent disease.
- leap-frogging — a game in which players take turns in leaping over another player bent over from the waist.
- lepidocrocite — a ruby-red to reddish-brown orthorhombic mineral, iron oxyhydroxide, FeO(OH), dimorphous with goethite: an ore of iron, used as a pigment.
- lepidopterans — Plural form of lepidopteran.
- lepidopterist — the branch of zoology dealing with butterflies and moths.
- lepidopterous — belonging or pertaining to the Lepidoptera, an order of insects comprising the butterflies, moths, and skippers, that in the adult state have four membranous wings more or less covered with small scales.
- leptokurtosis — the state of being leptokurtic.
- leptokurtotic — (statistics) Leptokurtic.
- leptospirosis — an infectious disease of humans and of horses, dogs, swine, and other animals, caused by the spirochete Leptospira interrogans and characterized by fever, muscle pain, and jaundice, and in severe cases involving the liver and kidney.
- lexicographer — a writer, editor, or compiler of a dictionary.
- lexicographic — Like a dictionary, relating to lexicography (the writing of a dictionary).
- linkage group — a group of genes in a chromosome that tends to be inherited as a unit.
- lipodystrophy — A disorder characterized by abnormal or degenerative conditions of the body's adipose tissue.
- lipogrammatic — of or relating to a lipogram
- liposculpture — the surgical removal of subcutaneous fat and its transplant to another part of the body, as to fill out facial contours.
- lithographing — Present participle of lithograph.
- lithontriptic — of or relating to destroying bladder or kidney stones
- lithotripters — Plural form of lithotripter.
- lithotriptist — a person skilled in breaking and removing stones from the bladder
- loebner prize — (artificial intelligence) An annual competition in artificial intelligence started by Dr. Hugh Loebner of New York City in 1991. A $100,000 prize is offered to the author of the first computer program to pass an unrestricted Turing test. Annual competitions are held each year with a $2000 prize for the best program on a restricted Turing test. Sponsors of previous competitions include: Apple Computer, Computerland, Crown Industries, GDE Systems, IBM Personal Computer Company's Center for Natural Computing, Greenwich Capital Markets, Motorola, the National Science Foundation, The Alfred P. Sloan Foundation, and The Weingart Foundation. The 1995 and 1996 events were unrestricted Turing Tests, requiring computer entries to converse indefinitely with no topic restrictions. So far, even the best programs give themselves away almost immediately, either by simple grammatical mistakes or by repetition. Complete transcripts and IBM compatible diskettes that play the 1991, 1992, and 1993 conversations in real-time are available for purchase from the Cambridge Center for Behavioral Studies (telephone: +1 (617) 491 9020, Fax: 1072). Sponsorship opportunities are available.
- loop diuretic — any of a group of diuretics, including frusemide, that act by inhibiting resorption of salts from Henle's loop of the kidney tubule
- lophotrichous — (biology, of bacteria) Having multiple flagella located at the same point, so that they can act in concert to drive the bacterium in a single direction.
- louis pasteur — Louis [loo-ee;; French lwee] /ˈlu i;; French lwi/ (Show IPA), 1822–95, French chemist and bacteriologist.
- lymphographic — of or relating to lymphography
- lymphotrophic — carrying nutrients from the lymph to the tissues.
- macrocephalic — Cephalometry. being or having a head with a large cranial capacity.
- macroscopical — Macroscopic.
- mail exploder — (messaging) Part of an electronic mail delivery system which allows a message to be delivered to a list of addresses. Mail exploders are used to implement mailing lists. Users send messages to a single address and the mail exploder takes care of delivery to the individual mailboxes in the list.
- malabsorption — faulty absorption of nutritive material from the intestine.
- malapropistic — an act or habit of misusing words ridiculously, especially by the confusion of words that are similar in sound.
- mariposa lily — any lily of the genus Calochortus, of the western U.S. and Mexico, having tuliplike flowers of various colors.
- master policy — a single policy covering a group of people, typically employees of a company, issued to an employer.
- matripotestal — of or relating to the authority exercised by a mother or a mother's blood relatives.
- memorial park — cemetery.
- mephobarbital — The drug methylphenobarbital.
- mesi protocol — (processor) Modified, Exclusive, Shared, Invalid. A cache coherency protocol where each cache line is marked with one of the four states. The MESI protocol is used by the Pentium processor.
- metropolitans — Plural form of metropolitan.
- microcapsules — Plural form of microcapsule.
- microcephalia — Microcephaly.
- microcephalic — having a head with a small braincase.
- microcephalus — An abnormally small head.
- microfloppies — 3.5-inch floppies, as opposed to 5.25-inch vanilla or mini-floppies and the now-obsolete 8-inch variety. This term may be headed for obsolescence as 5.25-inchers pass out of use, only to be revived if anybody floats a sub-3-inch floppy standard. See stiffy, minifloppies.
- microparticle — An extremely small particle.
- microphyllous — having microphylls
- microplankton — plankton visible as individual organisms only with the aid of a microscope, which excludes most animal plankton.
- micropolitics — The use of formal and informal power by individuals and groups to achieve their goals within organizations, as opposed to macropolitics.
- microscopical — so small as to be invisible or indistinct without the use of the microscope: microscopic organisms. Compare macroscopic.
- military coup — a coup organized and carried out by members of the armed forces
- milk products — dairy produce, items made with milk