13-letter words containing a, d, u, r
- millau bridge — a road bridge, the highest in the world, crossing the River Tarn in the Massif Central in SW France; designed by Sir Norman Foster and opened in 2004
- misadventured — (obsolete) unfortunate.
- misadventurer — a person who experiences misadventure or misfortune
- misadventures — Plural form of misadventure.
- misattributed — Simple past tense and past participle of misattribute.
- misdemeanours — Plural form of misdemeanour.
- misunderstand — to take (words, statements, etc.) in a wrong sense; understand wrongly.
- modula-prolog — Adds a Prolog layer to Modula-2. "Modula-Prolog: A Software Development Tool", C. Muller IEEE Software pp.39-45 (Nov 1986).
- monkey around — any mammal of the order Primates, including the guenons, macaques, langurs, and capuchins, but excluding humans, the anthropoid apes, and, usually, the tarsier and prosimians. Compare New World monkey, Old World monkey.
- monosaturated — (organic chemistry, of a glyceride) Having one saturated fatty acid.
- mordant rouge — a solution of aluminum acetate in acetic acid, used in dyeing and calico printing.
- mountainboard — a type of skateboard specially designed for rough terrain and steep slopes, having four large wheels linked by a suspension system
- mourning band — a piece of black material, esp an armband, worn to indicate that the wearer is in mourning
- much-traveled — A much-traveled person has traveled a lot in foreign countries.
- multibranched — Having more than one branch.
- multigravidas — Plural form of multigravida.
- multiramified — having several branches or branchlike parts
- multistandard — able to process signals from several different systems
- multistranded — having several strands
- multithreaded — multithreading
- murder weapon — the weapon that was used in a murder
- muriatic acid — (not in scientific use) hydrochloric acid.
- muzzle-loader — a firearm that is loaded through the muzzle.
- muzzleloaders — Plural form of muzzleloader.
- natural child — Law. an illegitimate child; one born of illicit intercourse. (especially in Louisiana) an illegitimate child who has been lawfully acknowledged by its father.
- natural death — death that occurs from natural causes, as disease or old age, rather than from violence or an accident.
- neuraminidase — An enzyme, present in many pathogenic or symbiotic microorganisms, that catalyzes the breakdown of glycosides containing neuraminic acid.
- neurofeedback — The presentation of realtime feedback on brainwave activity, as measured by sensors on the scalp, sometimes offered as a means of therapy.
- non-budgetary — an estimate, often itemized, of expected income and expense for a given period in the future.
- non-dangerous — full of danger or risk; causing danger; perilous; risky; hazardous; unsafe.
- non-fiduciary — Law. a person to whom property or power is entrusted for the benefit of another.
- non-juridical — of or relating to the administration of justice.
- nonauthorized — Not authorized.
- nonfraudulent — Not fraudulent.
- nonguaranteed — Not guaranteed; unguaranteed.
- nonindustrial — of, pertaining to, of the nature of, or resulting from industry: industrial production; industrial waste.
- nonrefundable — an amount refunded.
- nubian desert — an arid region in the NE Sudan.
- nudiustertian — (rare, obsolete) Of the day before yesterday.
- old bulgarian — the Bulgarian language of the Middle Ages.
- old favourite — If you refer to something as an old favourite, you mean that it has been in existence for a long time and everyone knows it or likes it.
- old ritualist — Raskolnik.
- olduvai gorge — a gorge in Tanzania in which is located a site containing Australopithecine and human skeletal and cultural remains.
- on your guard — If you are on your guard or on guard, you are being very careful because you think a situation might become difficult or dangerous.
- onus probandi — the burden of proof.
- organ-builder — a maker of organs
- out of danger — no longer at risk
- out-and-outer — a person who does things with excessive thoroughness; extremist.
- outdoorswoman — a woman devoted to outdoor sports and recreational activities.
- outgeneralled — Simple past tense and past participle of outgeneral.