17-letter words containing s, p, r, o

superconductivity — the phenomenon of almost perfect conductivity shown by certain substances at temperatures approaching absolute zero. The recent discovery of materials that are superconductive at temperatures hundreds of degrees above absolute zero raises the possibility of revolutionary developments in the production and transmission of electrical energy.
supernova remnant — an expanding shell of gas, with accompanying strong radio and x-ray emissions, produced by a supernova.
superregeneration — regeneration in which a signal is alternately amplified and quenched at a frequency slightly above the audible range to achieve high sensitivity with a single tube.
superstitiousness — of the nature of, characterized by, or proceeding from superstition: superstitious fears.
supervision order — an order by a juvenile court requiring a named probation officer or local-authority social worker to advise, assist, and befriend a child or young person who is the subject of care proceedings, over a period of up to three years
supervisory board — a board of management of which nonmanagerial workers are members, having supervisory powers over some aspects of management decision-making
support mechanism — any formal system or method of providing support or assistance
suppressor t cell — a T cell capable of inhibiting the activity of B cells and other T cells.
supra-nationalism — outside or beyond the authority of one national government, as a project or policy that is planned and controlled by a group of nations.
supreme commander — the military officer commanding all allied forces in a theater of war.
surprise symphony — the Symphony No. 94 in G major (1791) by Franz Josef Haydn.
suspension bridge — a bridge having a deck suspended from cables anchored at their extremities and usually raised on towers.
swash plate motor — a collar or face plate on a shaft that is inclined at an oblique angle to the axis of rotation and converts reciprocating motion to rotation
synchronous speed — the speed at which an alternating-current machine must operate to generate electromotive force at a given frequency.
tactile corpuscle — an oval sense organ made of flattened cells and encapsulated nerve endings, occurring in hairless skin, as the tips of the fingers and toes, and functioning as a touch receptor.
take no prisoners — to be uncompromising and resolute in one's actions
take-no-prisoners — wholeheartedly aggressive; zealous; gung-ho: a businessman with a take-no-prisoners attitude toward dealmaking.
technical support — an advising and troubleshooting service provided by a manufacturer, typically a software or hardware developer, to its customers, often online or on the telephone.
teething problems — If a project or new product has teething problems, it has problems in its early stages or when it first becomes available.
telephone numbers — extremely large numbers, esp in reference to salaries or prices
telephone service — a company or public utility that provides a telephone-operating service
telescopic damper — a device with telescopic parts that reduce vibration in a motor vehicle
temple of artemis — the temple at Ephesus dedicated to Artemis.
the lord's prayer — the, the prayer given by Jesus to His disciples, and beginning with the words Our Father. Matt. 6:9–13; Luke 11:2–4.
the metamorphosis — a short story (1915) by Franz Kafka.
the past anterior — a French tense: the pluperfect
the peace process — negotiations (between governments, countries, ect) towards peace or the resolution of a conflict
the popular press — cheap newspapers with a mass circulation; the tabloid press
the primrose path — a pleasurable way of life
the tabloid press — (considered as a whole) newspapers with pages about 30 cm (12 inches) by 40 cm (16 inches), usually characterized by an emphasis on photographs and a concise and often sensational style
the upper regions — the sky; heavens
the-metamorphosis — a short story (1915) by Franz Kafka.
thermal expansion — expansion caused by heat
to come up trumps — If you say that someone came up trumps, you mean that they did something successfully, often when they were not expected to.
to know the ropes — If you know the ropes, you know how a particular job or task should be done.
to lick your lips — If you lick your lips, you move your tongue across your lips as you think about or taste something pleasant.
to little purpose — with little (or no) result or effect; pointlessly
to lose your grip — If you lose your grip, you become less efficient and less confident, and less able to deal with things.
to open your eyes — If something opens your eyes, it makes you aware that something is different from the way that you thought it was.
to push your luck — If you say that someone is pushing their luck, you think they are taking a bigger risk than is sensible, and may get into trouble.
to slip your mind — If something slips your mind, you forget it.
tolpuddle martyrs — six farm workers sentenced to transportation for seven years in 1834 for administering an unlawful oath to form a trade union in the village of Tolpuddle, Dorset
top-security wing — a wing of a prison, mental hospital, etc that has a very high level of precautions against escape
triskaidekaphobia — fear or a phobia concerning the number 13.
turbosupercharger — (formerly) a turbocharger.
ultrametamorphism — metamorphism during which the temperature of a rock exceeds its melting point.
uncooperativeness — working or acting together willingly for a common purpose or benefit.
undercompensation — to compensate or pay less than is fair, customary, or expected.
unprofessionalism — not professional; not pertaining to or characteristic of a profession.
vacuum aspiration — menstrual extraction.

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