13-letter words containing p, r, o, e, l
- leptokurtotic — (statistics) Leptokurtic.
- lepton number — in a process involving elementary particles, the total number of leptons minus the total number of antileptons.
- 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.
- letter opener — bladed tool for opening envelopes
- 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.
- liposculpture — the surgical removal of subcutaneous fat and its transplant to another part of the body, as to fill out facial contours.
- lithotripters — Plural form of lithotripter.
- 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
- lord temporal — a member of the House of Lords who is not a member of the clergy.
- lord's prayer — the, the prayer given by Jesus to His disciples, and beginning with the words Our Father. Matt. 6:9–13; Luke 11:2–4.
- lord's supper — the, the sacrament in commemoration of the Last Supper; communion; Mass; Eucharist.
- lost property — lost and found.
- louis pasteur — Louis [loo-ee;; French lwee] /ˈlu i;; French lwi/ (Show IPA), 1822–95, French chemist and bacteriologist.
- lump together — If a number of different people or things are lumped together, they are considered as a group rather than separately.
- macrocephalic — Cephalometry. being or having a head with a large cranial capacity.
- macrocephalus — Alternative spelling of macrocephalous.
- 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.
- major penalty — a penalty consisting of the removal of a player for five minutes from play, no substitute for the player being permitted.
- 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.
- melbourne cup — an annual horse race run in Melbourne, since 1861
- memorial park — cemetery.
- mephobarbital — The drug methylphenobarbital.
- merleau-ponty — Maurice, 1908–61, French phenomenological philosopher.
- 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.
- metallography — the study of the structure of metals and alloys by means of microscopy.
- methylpropane — (organic compound) isobutane.
- methylpropene — (organic compound) IUPAC name for isobutylene.
- 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.
- milos process — The MILOS process is a process that uses an additional riser in the FCC, which gives the refiner options to simultaneously maximize production of diesel and propylene.
- minor penalty — a penalty consisting of the removal of a player from play for two minutes, no substitute for the player being permitted.
- molly pitcher — Molly (Mary Ludwig Hays McCauley) 1754–1832, American Revolutionary heroine.
- mongol empire — an empire founded in the 12th century by Genghis Khan, which reached its greatest territorial extent in the 13th century, encompassing the larger part of Asia and extending westward to the Dnieper River in eastern Europe.
- morphemically — By means of, or in terms, of morphemes.
- mother's help — a woman employed to help look after children and help the mother in other ways
- multiemployer — Of or pertaining to more than one employer.
- multitemporal — (music) Having multiple tempos.
- myrmecophiles — Plural form of myrmecophile.
- nanoparticles — Plural form of nanoparticle.
- natural slope — the maximum angle at which soil will lie in a bank without slipping
- necrophiliacs — Plural form of necrophiliac.