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15-letter words containing d, u, r, n

  • muslim calendar — the lunar calendar used by Muslims and reckoned from a.d. 622: the calendar year consists of 354 days and contains 12 months: Moharram, Safar, Rabi I, Rabi II, Jumada I, Jumada II, Rajab, Shaban, Ramadan, Shawwal, Dhu ʾl-Qaʿda, and Dhu ʾl-hijjah. In leap years the month Dhu ʾl-hijjah contains one extra day.
  • narcotics squad — a department of the police which investigates crimes concerning illegal drugs
  • neurodepressive — (of a drug) depressing nerve-cell function.
  • neurodermatitis — W Lichen simplex chronicus, a skin disorder characterized by chronic itching and scratching, resulting in thick, leathery, brownish skin.
  • neuroectodermal — Of or pertaining to the neuroectoderm.
  • neutral density — black, white, or a shade of grey; a colourless tone
  • nevado del ruiz — a volcano in W central Colombia, in the Andes: eruption 1985. 17,720 feet (5401 meters).
  • nil desperandum — never despair
  • nomex underwear — /noh'meks uhn'-der-weir/ [Usenet] Synonym asbestos longjohns, used mostly in auto-related mailing lists and newsgroups. NOMEX underwear is an actual product available on the racing equipment market, used as a fire resistance measure and required in some racing series.
  • non-documentary — Also, documental [dok-yuh-men-tl] /ˌdɒk yəˈmɛn tl/ (Show IPA). pertaining to, consisting of, or derived from documents: a documentary history of France.
  • non-interrupted — having an irregular or discontinuous arrangement, as of leaflets along a stem.
  • non-repudiation — the act of repudiating.
  • noncomputerized — not computerized or controlled by computers
  • nonmatriculated — not matriculated, not enrolled in an institution, esp a college or university
  • nonreproducible — Unable to be reproduced; not reproducible.
  • nonreproductive — Not able to reproduce; sterile.
  • nuclear warhead — a warhead containing a fission or fusion bomb.
  • nuclear-powered — powered by nuclear energy
  • nuisance ground — a garbage dump.
  • nuke the fridge — (of a film, etc.) to lose credibility following a particularly ill-judged scene or plot development
  • number one wood — driver (def 4).
  • nursing studies — the study of nursing
  • ocean greyhound — a fast ship, esp a liner
  • odd permutation — a permutation of a set of n elements, x 1 , x 2 , …, xn, which permutes the product of all differences of the form (xi – xj), where i is less than j, into the negative of the product.
  • odontorhynchous — (of birds) having toothlike ridges inside the beak
  • odoriferousness — The quality of being odoriferous.
  • off one's guard — to keep safe from harm or danger; protect; watch over: to guard the ruler.
  • ordered n-tuple — a set of n objects or quantities, where n is an integer, especially such a set arranged in a specified order (ordered n-tuple)
  • ordinal numbers — Also called ordinal numeral. any of the numbers that express degree, quality, or position in a series, as first, second, and third (distinguished from cardinal number).
  • ordnance survey — mapmaking agency
  • ortho-toluidine — Chemistry. a light-yellow, very slightly water-soluble liquid, C 7 H 9 N, the ortho isomer of toluidine: used in the manufacture of dyes, saccharin, and other organic compounds, and in textile printing processes.
  • outdoorsmanship — a person devoted to outdoor sports and recreational activities, as hiking, hunting, fishing, or camping.
  • outline drawing — a drawing consisting only of external lines
  • outward journey — a journey leaving for a particular destination (as opposed top one returning home)
  • outward-looking — looking beyond oneself; open-minded and reaching out to other people, organizations, etc
  • overexpenditure — the act of expending something, especially funds; disbursement; consumption.
  • paid-in surplus — surplus paid in by purchasers of stock certificates sold at a premium.
  • pair production — Physics. the simultaneous creation of a particle and its antiparticle by a nucleus or particle in an excited state, as when a photon is absorbed.
  • pandorae fretum — an area in the southern hemisphere of Mars.
  • parent compound — a compound from which derivatives may be obtained.
  • partial denture — an artificial replacement of one or several of the teeth (partial denture) or all of the teeth (full denture) of either or both jaws; dental prosthesis.
  • peak production — the maximum production
  • penal servitude — imprisonment together with hard labor.
  • perpendicularly — vertical; straight up and down; upright.
  • photoproduction — the light-induced production of a species of molecule such as a radical or ion
  • piano reduction — a musical score having the parts condensed or simplified in two staves, to render the music playable on the piano by one person.
  • pituitary gland — a small, somewhat cherry-shaped double structure attached by a stalk to the base of the brain and constituting the master endocrine gland affecting all hormonal functions in the body, consisting of an anterior region ((anterior pituitary) or (adenohypophysis)) that develops embryonically from the roof of the mouth and that secretes growth hormone, LH, FSH, ACTH, TSH, and MSH, a posterior region ((posterior pituitary) or (neurohypophysis)) that develops from the back of the forebrain and that secretes the hormones vasopressin and oxytocin, and an intermediate part (pars intermedia) derived from the anterior region but joined to the posterior region, that secretes the hormone MSH in lower vertebrates.
  • platitudinarian — a person who frequently or habitually utters platitudes.
  • plumbers-friend — Machinery. a pistonlike reciprocating part moving within the cylinder of a pump or hydraulic device.
  • pneumatic drill — a percussive power drill powered by compressed air
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