18-letter words containing a, p, o, r

spike-tooth harrow — a harrow equipped with straight teeth on horizontal bars, usually employed to smooth and level plowed soil or seedbeds for planting or sowing.
spirits of ammonia — a 10% solution of ammonia in alcohol
spotted flycatcher — a European woodland songbird, Muscicapa striata, with a greyish-brown streaked plumage: family Muscicapidae (Old World flycatchers)
spread one's wings — to make full use of one's abilities
statutory sick pay — the pay an employee is legally entitled to when sick
stroustrup, bjarne — Bjarne Stroustrup
subatomic particle — physics:
subsidiary company — a company whose controlling interest is owned by another company.
summary proceeding — a mode of trial authorized by statute to be held before a judge without the usual full hearing.
super giant slalom — a slalom race in which the course is longer and has more widely spaced gates than in a giant slalom.
super royal octavo — a book size, 63⁄4 by 101⁄4 inches
super royal quarto — a book size, 101⁄4 by 131⁄2 inches
superior vena cava — See under vena cava.
supporting actress — an actress playing a supporting role
supportive therapy — any treatment, such as the intravenous administration of certain fluids, designed to reinforce or sustain the physiological well-being of a patient
supraorbital ridge — browridge.
surveyor's compass — an instrument used by surveyors for measuring azimuths.
sustaining program — a radio or television program without a commercial sponsor.
symphony orchestra — a large orchestra composed of wind, string, and percussion instruments and organized to perform symphonic compositions.
system-programming — a program, as an operating system, compiler, or utility program, that controls some aspect of the operation of a computer (opposed to application program).
systems programmer — a person whose job is to program systems software
take the wraps off — to reveal
temporal summation — the act or process of summing.
temporary hardness — hardness of water due to the presence of magnesium and calcium hydrogencarbonates, which can be precipitated as carbonates by boiling
territory of papua — a former territory of Australia, consisting of SE New Guinea and adjacent islands: now part of Papua New Guinea
the better part of — a large part of
the lords temporal — (in Britain) peers other than bishops in their capacity as members of the House of Lords
the operative word — If you describe a word as the operative word, you want to draw attention to it because you think it is important or exactly true in a particular situation.
the powers that be — You can refer to people in authority as the powers that be, especially when you want to say that you disagree with them or do not understand what they say or do.
the-cocktail-party — a play in verse (1950) by T. S. Eliot.
thiosulphuric acid — an unstable acid known only in solutions and in the form of its salts. Formula: H2S2O3
to all appearances — apparently
to cast aspersions — If you cast aspersions on someone or something, you suggest that they are not very good in some way.
to get a bad press — If someone or something gets a bad press, they are criticized, especially in the newspapers, on television, or on radio. If they get a good press, they are praised.
to hold your peace — If you hold or keep your peace, you do not speak, even though there is something you want or ought to say.
to learn the ropes — If you are learning the ropes, you are learning how a particular task or job is done.
to open your heart — If you open your heart or pour out your heart to someone, you tell them your most private thoughts and feelings.
to play favourites — to display favouritism
to plough a furrow — If you say that someone ploughs a particular furrow or ploughs their own furrow, you mean that their activities or interests are different or isolated from those of other people.
to put years on sb — if you say that something such as an experience or a way of dressing has put years on someone, you mean that it has made them look or feel much older
to scrape a living — If you say that someone scrapes a living or scratches a living, you mean that they manage to earn enough to live on, but it is very difficult. In American English, you say they scrape out a living or scratch out a living.
to speak your mind — If you speak your mind, you say firmly and honestly what you think about a situation, even if this may offend or upset people.
to sweep the board — If someone sweeps the board in a competition or election, they win nearly everything that it is possible to win.
to watch your step — If someone tells you to watch your step, they are warning you to be careful about how you behave or what you say so that you do not get into trouble.
traditional option — an option that once purchased cannot be resold
traditional policy — a life assurance policy in which the policyholder's premiums are paid into a general fund and his or her investment benefits are calculated according to actuarial formulae
traditional weapon — a weapon having ceremonial tribal significance, such as an assegai or knobkerrie
transient response — A transient response of a circuit is a temporary change in the way that it behaves due to an external excitation, that will disappear with time.
transporter bridge — a bridge for carrying passengers and vehicles by means of a platform suspended from a trolley.
transverse process — a process that projects from the sides of a vertebra.

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