17-letter words containing u, p, r, a
- self-perpetuating — continuing oneself in office, rank, etc., beyond the normal limit.
- self-purification — a natural process of purifying, as the ability of a body of water to rid itself of pollutants.
- separating funnel — a large funnel having a tap in its output tube, used to separate immiscible liquids
- sexual dimorphism — the condition in which the males and females in a species are morphologically different, as with many birds.
- sexual preference — Someone's sexual preference is the same as their sexual orientation.
- shetland pullover — a thick woollen sweater made from Shetland wool
- shortcrust pastry — a basic type of pastry that is made with half the quantity of fat to flour, and has a crisp but crumbly texture
- sleeping quarters — the rooms where people sleep in a large building or complex or on a boat etc
- sodium propionate — a transparent, crystalline, water-soluble powder, C 3 H 5 NaO 2 , used in foodstuffs to prevent mold growth, and in medicine as a fungicide.
- sodium pyroborate — borax1 .
- sodium-vapor lamp — an electric lamp in which sodium vapor is activated by current passing between two electrodes, producing a yellow, glareless light: used on streets and highways.
- sound spectrogram — a graphic representation, produced by a sound spectrograph, of the frequency, intensity, duration, and variation with time of the resonance of a sound or series of sounds.
- southampton water — an inlet of the English Channel in S England
- southern sporades — a group of Greek islands in the Aegean, including the Dodecanese, lying off the SW coast of Turkey
- spatial frequency — the measure of fine detail in an optical image in terms of cycles per millimetre
- spectrum analyser — an instrument that splits an input waveform into its frequency components, which are then displayed
- spectrum analysis — the determination of the constitution or condition of bodies and substances by means of the spectra they produce.
- sperrin mountains — a mountain range in NW Northern Ireland
- spiritual bouquet — the spiritual presentation of a good work to another person.
- spiritual healing — faith healing
- spot-illustration — a rounded mark or stain made by foreign matter, as mud, blood, paint, ink, etc.; a blot or speck.
- spread your wings — if you spread your wings, you do something new and rather difficult or move to a new place, because you feel more confident in your abilities than you used to and you want to gain wider experience
- spruce gall aphid — any of various homopterous insects of the family Adelgidae, as Adelges abietis (spruce gall aphid) and Pineus pinifoliae (pine leaf aphid) that feed and form galls on conifers.
- storm in a teacup — a violent fuss or disturbance over a trivial matter
- strike-slip fault — a geological fault on which the movement is along the strike of the fault
- subscription rate — the price charged for a subscription
- sulfurated potash — a yellowish-brown mixture consisting mainly of potassium polysulfides and potassium thiosulfate, used in treating mange.
- super-nationalism — an extreme or fanatical loyalty or devotion to a nation.
- super-terrestrial — pertaining to, consisting of, or representing the earth as distinct from other planets.
- superaerodynamics — the branch of aerodynamics that deals with gases at very low densities.
- superalimentation — nourishment; nutrition.
- supercolumniation — the placing of one order of columns above another.
- supermassive star — Astronomy. a star with a mass more than fifty times the mass of the sun.
- 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.
- 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
- 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.
- supralapsarianism — the doctrine that the decree of election preceded human creation and the Fall (opposed to infralapsarianism).
- supreme commander — the military officer commanding all allied forces in a theater of war.
- supreme sacrifice — the sacrifice of one's own life: Many made the supreme sacrifice during the war.
- 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.
- tapestry brussels — a carpet made with three-ply or four-ply worsted yarn drawn up in uncut loops to form a pattern over the entire surface (body Brussels) or made of worsted or woolen yarns on which a pattern is printed (tapestry Brussels)
- 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.
- temperature chart — a chart monitoring and recording somebody's body temperature, as of a patient at a hospital, etc
- temperature gauge — a device which shows the temperature or heat of something
- temporary account — A temporary account is an account which is closed out at the end of the year.
- temporomandibular — of, relating to, or situated near the hinge joint formed by the lower jaw and the temporal bone of the skull.
- the popular press — cheap newspapers with a mass circulation; the tabloid press
- therapeutic index — the ratio between the dosage of a drug that causes a lethal effect and the dosage that causes a therapeutic effect.