21-letter words containing u, d, m, r, t
- mother-of-pearl cloud — nacreous cloud.
- motor neurone disease — Motor neurone disease is a disease which destroys the part of a person's nervous system that controls movement.
- multi-ringed compound — A multi-ringed compound is a compound which has 70 or more carbon atoms, often a residual compound.
- non-maintainer upload — (operating system) (NMU) A release of a Debian package by someone other than its usual maintainer. E.g. "The bug was fixed in a recent NMU."
- northumberland strait — the part of the Gulf of St. Lawrence that separates Prince Edward Island from New Brunswick and Nova Scotia, in SE Canada. About 200 miles (320 km) long; 9–30 miles (15–48 km) wide.
- notre-dame-des-vertus — an industrial suburb of Paris, on the Seine. Pop: 63 136 (1999)
- pomp and circumstance — ceremony
- postpartum depression — Postpartum depression is a mental state involving feelings of anxiety and sudden mood swings which some women experience after they have given birth.
- premenstrual syndrome — a complex of physical and emotional changes, including depression, irritability, appetite changes, bloating and water retention, breast soreness, and changes in muscular coordination, one or more of which may be experienced in the several days before the onset of menstrual flow. Abbreviation: PMS.
- production department — the department of a business or organization responsible for manufacturing products
- prone pressure method — a method of artificial respiration in which the patient is placed face downward, pressure then being rhythmically applied with the hands to the lower part of the thorax.
- pseudohermaphroditism — an individual having internal reproductive organs of one sex and external sexual characteristics resembling those of the other sex or being ambiguous in nature. Compare hermaphrodite (def 1).
- public address system — loudspeaker
- public administration — the implementation of public policy, largely by the executive branch.
- public-address system — a combination of electronic devices that makes sound audible via loudspeakers to many people, as in an auditorium or out of doors.
- purchasing department — the group of staff within an organization that is responsible for buying goods or products
- pyrenean mountain dog — a large heavily built dog of an ancient breed originally used to protect sheep from wild animals: it has a long thick white coat with a dense ruff
- reduced circumstances — If you say that someone is living in reduced circumstances, you mean that they do not have as much money as they used to have.
- registration document — a document giving identification details of a motor vehicle, including its manufacturer, date of registration, engine and chassis numbers, and owner's name
- remote procedure call — (networking, programming) (RPC) A protocol which allows a program running on one host to cause code to be executed on another host without the programmer needing to explicitly code for this. RPC is an easy and popular paradigm for implementing the client-server model of distributed computing. An RPC is initiated by the caller (client) sending request message to a remote system (the server) to execute a certain procedure using arguments supplied. A result message is returned to the caller. There are many variations and subtleties in various implementations, resulting in a variety of different (incompatible) RPC protocols.
- residual unemployment — the unemployment that remains in periods of full employment, as a result of those mentally, physically, or emotionally unfit to work
- roodepoort-maraisburg — a city in S Transvaal, in the NE Republic of South Africa.
- s-k reduction machine — An abstract machine defined by Professor David Turner to evaluate combinator expressions represented as binary graphs. Named after the two basic combinators, S and K.
- saint-maur-des-fosses — a town in N central France, near Paris, on the Marne River.
- sampling distribution — the distribution of a statistic based on all possible random samples that can be drawn from a given population.
- sedimentary sequences — Sedimentary sequences are layers of rock which are derived from weathered rocks, biogenic (= of living organisms) activity, or precipitation from solution.
- take under advisement — to consider carefully
- the moral high ground — If you say that someone has taken the moral high ground, you mean that they consider that their policies and actions are morally superior to the policies and actions of their rivals.
- to know your own mind — If you know your own mind, you are sure about your opinions, and are not easily influenced by other people.
- to stick in your mind — If something sticks in your mind, it remains firmly in your memory.
- to take your mind off — If something takes your mind off a problem or unpleasant situation, it helps you to forget about it for a while.
- transcendental number — a number that is not a root of any algebraic equation having integral coefficients, as π or e .
- under one's own steam — If you do something under your own steam, you do it without any help from anyone else.
- universal disk format — (storage, standard) (UDF) A CD-ROM file system standard that is required for DVD ROMs. UDF is the OSTA's replacement for the ISO 9660 file system used on CD-ROMs, but will be mostly used on DVD. DVD multimedia disks use UDF to contain MPEG audio and video streams. To read DVDs you need a DVD drive, the kernel driver for the drive, MPEG video support, and a UDF driver. DVDs containing both UDF filesystems and ISO 9660 filesystems can be read without UDF support. UDF can also be used by CD-R and CD-RW recorders in packet writing mode.
- ventriloquist's dummy — a puppet which is operated by a ventriloquist and made to appear to talk
- xeroderma pigmentosum — a rare inherited disease characterized by sensitivity to ultraviolet light, exposure resulting in lesions and tumors of the skin and eyes.