19-letter words containing t, h, e, r, d
- parathyroid extract — an aqueous preparation obtained from the parathyroid gland of cattle, used in medicine chiefly in cases of parathyroid deficiency and in veterinary medicine in the treatment of tetanic convulsions.
- parathyroid hormone — a polypeptide hormone, produced in the parathyroid glands, that helps regulate the blood levels of calcium and phosphate. Abbreviation: PTH.
- phenylthiocarbamide — a crystalline, slightly water-soluble solid, C 6 H 5 NHCSNH 2 , that is either tasteless or bitter, depending upon the heredity of the taster, and is used in medical genetics and as a diagnostic.
- photodisintegration — the disintegration of a nucleus, induced by its absorption of a photon.
- pocket-handkerchief — handkerchief (def 1).
- police headquarters — building where police are stationed
- 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.
- primitive methodist — a member of a Protestant denomination (Primitive Methodist Church) founded in England in 1812 and later established in the U.S., characterized by its adherence to the basic doctrines, principles, and practices taught by John Wesley.
- 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.
- pseudohermaphrodite — an individual having internal reproductive organs of one sex and external sexual characteristics resembling those of the other sex or being ambiguous in nature. Compare hermaphrodite (def 1).
- psychic determinism — the theory that all aspects of a person's psychological makeup arise from specific causes or forces, as previous experiences or instinctual drives, which may be conscious or unconscious.
- put the skids under — a plank, bar, log, or the like, especially one of a pair, on which something heavy may be slid or rolled along.
- radiopharmaceutical — any of a number of radioactive drugs used diagnostically or therapeutically.
- rapture of the deep — nitrogen narcosis.
- redress the balance — to make a fair adjustment; see that justice is done
- reticuloendothelial — pertaining to, resembling, or involving cells of the reticuloendothelial system.
- right-eyed flounder — any of several flatfishes of the family Pleuronectidae, having both eyes on the right side of the head.
- run into the ground — to do too long or too often; overdo
- run-length encoding — A kind of compression algorithm which replaces sequences ("runs") of consecutive repeated characters (or other units of data) with a single character and the length of the run. This can either be applied to all input characters, including runs of length one, or a special character can be used to introduce a run-length encoded group. The longer and more frequent the runs are, the greater the compression that will be achieved. This technique is particularly useful for encoding black and white images where the data units would be single bit pixels.
- saber-toothed tiger — any of several extinct members of the cat family Felidae from the Oligocene to Pleistocene Epochs, having greatly elongated, saberlike upper canine teeth.
- sabre-toothed tiger — any of various extinct Tertiary felines of the genus Smilodon and related genera, with long curved upper canine teeth
- sandwich generation — the generation of people still raising their children while having to care for their aging parents.
- sell down the river — a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels.
- semidetached binary — a pair of stars that are so close together that mass transfer occurs from one to the other
- sharp-tailed grouse — a grouse, Pedioecetes phasianellus, of prairies and open forests of western North America, similar in size to the prairie chicken but with a more pointed tail.
- sheet flood erosion — Geology. erosion by sheets of running water, rather than by streams.
- ship-to-shore radio — a radio that carries communications between land and sea
- shipping department — a department in a company responsible for arranging, receiving, recording, and sending shipments of goods
- simple carbohydrate — a carbohydrate, as glucose, that consists of a single monosaccharide unit.
- 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.
- soft-shelled turtle — any of numerous aquatic turtles of the family Trionychidae, inhabiting North America, Asia, and Africa, having the shell covered with flexible, leathery skin instead of horny plates.
- spider-hunting wasp — any solitary wasp of the superfamily Pompiloidea, having a slender elongated body: the fast-running female hunts spiders as a food store for her larvae
- spread oneself thin — to draw, stretch, or open out, especially over a flat surface, as something rolled or folded (often followed by out).
- stakeholder pension — In Britain, a stakeholder pension is a flexible pension scheme with low charges. Both employees and the state contribute to the scheme, which is optional, and is in addition to the basic state pension.
- standard atmosphere — an arbitrarily determined vertical distribution of atmospheric pressure, temperature, and density, assumed to have physical constants and conforming to parametric equations, used for calculations in ballistics, the design of pressure altimeters, etc.
- starve the bardies! — an exclamation of surprise or protest
- 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
- straightforwardness — going or directed straight ahead: a straightforward gaze.
- strangulated hernia — a hernia, especially of the intestine, that swells and constricts the blood supply of the herniated part, resulting in obstruction and gangrene.
- 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.
- synthetic detergent — any synthetic substance, other than soap, that is an effective cleanser and functions equally well as a surface-active agent in hard or soft water.
- take care to do sth — If you take care to do something, you make sure that you do it.
- tarnished plant bug — a bug, Lygus lineolaris, of the family Miridae, that is a common and widely distributed pest of alfalfa and other legumes and of peach and other fruit trees.
- teilhard de chardin — Pierre [pyer] /pyɛr/ (Show IPA), 1881–1955, French Jesuit priest, paleontologist, and philosopher.
- 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.
- tender is the night — a novel (1934) by F. Scott Fitzgerald.
- tetramethyldiarsine — an oily slightly water-soluble poisonous liquid with garlic-like odour. Its derivatives are used as accelerators for rubber