21-letter words containing m, e, o, r, i

return the compliment — repay sb's kindness with a kind act
reverberation chamber — a room with walls that reflect sound. It is used to make acoustic measurements and as a source of reverberant sound to be mixed with direct sound for recording or broadcasting
rocky mountain oyster — mountain oyster.
roodepoort-maraisburg — a city in S Transvaal, in the NE Republic of South Africa.
rub someone's nose in — to keep reminding someone of something unpleasant, as a mistake made
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.
salam-weinberg theory — the electroweak theory.
san gabriel mountains — a mountain range in S California, N of Los Angeles. Highest peak, San Antonio Peak, 10,080 feet (3072 meters).
sanitation department — the department of local government responsible for collecting and disposing of refuse
sao tome and principe — Democratic Republic of, a republic in W Africa, comprising the islands of São Tomé and Príncipe, in the Gulf of Guinea, N of the equator: a former overseas province of Portugal; gained independence in 1975. 372 sq. mi. (964 sq. km). Capital: São Tomé.
saponification number — the number of milligrams of potassium hydroxide required to saponify one gram of a given ester, especially a glyceride.
schoolgirl complexion — a smooth, clear complexion, such as schoolgirls are considered to have
secondary containment — Secondary containment is a system for dealing with hazardous spills.
secure hash algorithm —
serbia and montenegro — a former country in SE Europe, consisting of the republics of Serbia and Montenegro; replaced the Federal Republic of Yugoslavia in 2003, and dissolved in 2006 following Montenegro’s decision to secede
short message service — (messaging) (SMS) A message service offered by the GSM digital mobile telephone system. Using SMS, a short alphanumeric message (160 alphanumeric characters) can be sent to a mobile phone to be displayed there, much like in an alphanumeric pager system. The message is buffered by the GSM network until the phone becomes active.
sierra madre oriental — the system of mountains in the east of Mexico
simple actor language — (language) (SAL) A minimal actor language, used for teaching in:
somatization disorder — a mental illness, usually beginning before age 20, characterized by multiple physical complaints for which no physical causes can be found and often leading to unnecessary treatment or surgery and to severe disability.
somatotrophic-hormone — a hormone secreted by the anterior pituitary gland, that stimulates growth in humans.
someone's strong suit — a person's greatest talent, most conspicuous character trait, etc.
something for nothing — If you say that someone is getting something for nothing, you disapprove of the fact that they are getting what they want without doing or giving anything in return.
special court-martial — a court-martial established to try violations of military law less serious than those tried by a general court-martial but more serious than those tried by a summary court-martial.
spin angular momentum — to make (yarn) by drawing out, twisting, and winding fibers: Pioneer women spun yarn on spinning wheels.
stock list department — (in an American stock exchange) the department dealing with monitoring compliance with its listing requirements and rules
strategic air command — a U.S. Air Force command charged with intercontinental air strikes, especially nuclear attacks.
subliminal perception — perception of or reaction to a stimulus that occurs without awareness or consciousness
sympathetic vibration — a vibration induced by resonance.
synchronized swimming — a sport growing out of water ballet in which swimmers, in solo, duet, and team efforts, complete various required figures by performing motions in relatively stationary positions, along with a freestyle competition, with the contestants synchronizing movements to music and being judged for body position, control, and the degree of difficulty of the moves.
systeme international — Système International d'Unités
take someone prisoner — to capture and hold someone as a prisoner, esp as a prisoner of war
tape operating system — (operating system) (TOS) An IBM operating system for System 360, used in the early days around 1965 to support the IBM 360 model 30 et al. TOS was a predecessor to IBM's Disk Operating System. TOS died out really early as disks such as the 2311 and 2314 became common with the IBM 360 whereas thet had been a real luxury on the IBM 7090.
teleological argument — the argument purporting to prove the existence of God from empirical facts, the premise being that the universe shows evidence of order and hence design
temperature inversion — inversion (def 12).
tetrabromofluorescein — eosin (def 1).
the built environment — the buildings and all other things constructed by human beings
the microsoft network — (networking) (MSN) Microsoft's ISP and online content service, launched in October 1996. Not to be confused with Microsoft Networking. MSN was originally based on custom software and protocols, however Microsoft saw the error of their ways and adopted Internet standards. MSN now provides standard WWW and email facilities, albeit with Microsoft's Internet Explorer web-browser and the Outlook Express email software. The service also provides "Community Services" including newsgroups, forums, and chat.
the middle of nowhere — remote place
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.
therapeutic community — a group-based form of therapy for mental disorders, sometimes residential
thermal decomposition — Thermal decomposition is the process in which a chemical species breaks down when its temperature is increased.
thermal power station — a power station in which heat is converted into electricity
thermoelectric couple — thermocouple.
thermoelectric effect — the production of an electromotive force in a thermocouple.
to lay something bare — If you lay something bare, you uncover it completely so that it can then be seen.
to mix your metaphors — If you mix your metaphors, you use two conflicting metaphors. People do this accidentally, or sometimes deliberately as a joke.
to risk life and limb — If someone risks life and limb, they do something very dangerous that may cause them to die or be seriously injured.
to shoot from the hip — If you say that someone shoots from the hip or fires from the hip, you mean that they react to situations or give their opinion very quickly, without stopping to think.
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.

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