19-letter words containing t, h, y, o

postsynchronization — the process of adding sound, such as dubbing, to a film or video after shooting or videotaping is completed
potassium hydroxide — a white, deliquescent, water-soluble solid, KOH, usually in the form of lumps, sticks, or pellets, that upon solution in water generates heat: used chiefly in the manufacture of soap, as a laboratory reagent, and as a caustic.
priority scheduling — (operating system) Processes scheduling in which the scheduler selects tasks to run based on their priority as opposed to, say, a simple round-robin. Priorities may be static or dynamic. Static priorities are assigned at the time of creation, while dynamic priorities are based on the processes' behaviour while in the system. For example, the scheduler may favour I/O-intensive tasks so that expensive requests can be issued as early as possible. A danger of priority scheduling is starvation, in which processes with lower priorities are not given the opportunity to run. In order to avoid starvation, in preemptive scheduling, the priority of a process is gradually reduced while it is running. Eventually, the priority of the running process will no longer be the highest, and the next process will start running. This method is called aging.
psychotechnological — of or relating to psychotechnology
psychrometric chart — a chart for calculating values of relative humidity, absolute humidity, and dew point from psychrometer readings.
pythagoras' theorem — (spelling) It's Pythagoras's Theorem.
pythagorean theorem — Pythagoras's Theorem
radiochromatography — chromatography in which radiolabeled substances on the chromatogram are determined quantitatively or qualitatively by measuring their radioactivity.
research laboratory — place for scientific experimentation
right-eyed flounder — any of several flatfishes of the family Pleuronectidae, having both eyes on the right side of the head.
short-stay car park — a car park where a car can be left for a relatively short time
simple carbohydrate — a carbohydrate, as glucose, that consists of a single monosaccharide unit.
smooth the path/way — If you smooth the path or smooth the way towards something, you make it easier or more likely to happen.
social anthropology — study of human culture
sodium hydrosulfite — a white, crystalline, water-soluble powder, Na 2 S 2 O 4 , used as a reducing agent, especially in dyeing, and as a bleach.
sodium hypochlorite — a pale-green, crystalline compound, NaOCl, unstable in air, soluble in cold water, decomposes in hot water: used as a bleaching agent for paper and textiles, in water purification, in household use, and as a fungicide.
solid-state physics — the branch of physics that deals with the macroscopic physical properties of matter, especially solids; the study of the electromagnetic, structural, and thermodynamic properties of solids.
spherical astronomy — the branch of astronomy dealing with the determination of the positions of celestial bodies on the celestial sphere.
st. anthony's cross — a T -shaped cross.
steady state theory — a theory in which the universe is assumed to have average properties that are constant in space and time so that new matter must be continuously and spontaneously created to maintain average densities as the universe expands.
steady-state theory — a cosmological theory postulating that the universe exists throughout time in a steady state such that the average density of matter does not vary with distance or time. Matter is continuously created in the space left by the receding stars and galaxies of the expanding universe
strontium hydroxide — a white, slightly water-soluble powder, Sr(OH) 2 , or its crystalline octahydrate (strontium hydrate) used chiefly in the refining of beet sugar.
sulfureted hydrogen — hydrogen sulfide.
sympathetic contact — behavior toward an individual based on the individual's personal makeup rather than on his or her group membership.
symptomatic anthrax — blackleg.
take sth personally — If you take someone's remarks personally, you are upset because you think that they are criticizing you in particular.
telephone directory — a book, directory, or the like, usually containing an alphabetical list of telephone subscribers in a city or other area, together with their addresses and telephone numbers.
tetrachloroethylene — a colorless, nonflammable, nonexplosive liquid, C 2 Cl 4 , used as a solvent, especially in dry cleaning.
tetrafluoroethylene — a colorless, water-insoluble, flammable gas, C 2 F 4 , used in the synthesis of certain polymeric resins, as Teflon.
the admiralty board — (formerly) a department of the British Ministry of Defence, responsible for the administration and planning of the Royal Navy
the almighty dollar — money regarded figuratively as a god, or source of great power
the channel country — an area of E central Australia, in SW Queensland: crossed by intermittent rivers and subject to both flooding and long periods of drought
the eroica symphony — Symphony No. 3 in E flat major by Ludwig van Beethoven
the eye of the wind — the direction from which the wind is blowing
the heat of the day — The heat of the day is the hottest part of the day, especially when this is very hot.
the london assembly — the devolved legislature of London, based in City Hall, Southwark
the open university — (in Britain) a university founded in 1969 for mature students studying by television and radio lectures, correspondence courses, local counselling, and summer schools
the rest is history — If you are telling someone about an event and say the rest is history, you mean that you do not need to tell them what happened next because everyone knows about it already.
the world of cryton — (TWOC) A BBS for the Acorn Archimedes. Telephone: +44 (1749) 670 030 (24hrs, most speeds).
theoretical physics — abstract use of physics
theory of equations — the branch of mathematics dealing with methods of finding the solutions to algebraic equations.
to bury the hatchet — If two people bury the hatchet, they become friendly again after a quarrel or disagreement.
to change your mind — If you change your mind, or if someone or something changes your mind, you change a decision you have made or an opinion that you had.
to change your tune — If you say that someone has changed their tune, you are criticizing them because they have changed their opinion or way of doing things.
to click your heels — If someone such as a soldier clicks their heels, they make a sound by knocking the heels of their shoes together when saluting or greeting someone.
to do the drying-up — to dry dishes, cups, glasses, etc after they have been washed
to hang by a thread — If you say that something is hanging by a thread, you mean that it is in a very uncertain state and is unlikely to survive or succeed.
to have it off/away — To have it off with someone or have it away with someone means to have sex with them.
to hold your breath — If you hold your breath, you make yourself stop breathing for a few moments, for example because you are under water.
to hold your tongue — If you hold your tongue, you do not say anything even though you might want to or be expected to, because it is the wrong time to say it.

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