19-letter words containing o, l, d, h

right-eyed flounder — any of several flatfishes of the family Pleuronectidae, having both eyes on the right side of the head.
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.
saccharolactic acid — mucic acid.
sackcloth and ashes — a public display of extreme grief, remorse, or repentance
school of the squad — an institution where instruction is given, especially to persons under college age: The children are at school.
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.
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.
sidereal hour angle — the angle, measured westward through 360°, between the hour circle passing through the vernal equinox and the hour circle of a celestial body.
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.
sodium thiosulphate — a white soluble substance used, in the pentahydrate form, in photography as a fixer to dissolve unchanged silver halides and also to remove excess chlorine from chlorinated water. Formula: Na2S2O3
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.
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.
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.
stanislavski method — method (def 5).
sulfureted hydrogen — hydrogen sulfide.
sulphonium compound — any one of a class of salts derived by the addition of a proton to the sulphur atom of a thiol or thio-ether thus producing a positive ion (sulphonium ion)
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.
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 fat of the land — the best that is obtainable
the golden triangle — an opium-producing area of SE Asia, comprising parts of Myanmar, Laos, and Thailand
the london assembly — the devolved legislature of London, based in City Hall, Southwark
the millennium dome — a dome-shaped structure in Greenwich, London, built to house an exhibition to celebrate the millennium in 2000
the whole enchilada — all of it; everything; the entirety of something
the world of cryton — (TWOC) A BBS for the Acorn Archimedes. Telephone: +44 (1749) 670 030 (24hrs, most speeds).
theatrical producer — a person who is responsible for all aspects of a theatrical production
third international — an international organization (1919–43), founded in Moscow, uniting Communist groups of various countries and advocating the attainment of their ends by violent revolution. Also called Comintern, Communist International. Compare international (def 6).
third law of motion — any of three laws of classical mechanics, either the law that a body remains at rest or in motion with a constant velocity unless an external force acts on the body (first law of motion) the law that the sum of the forces acting on a body is equal to the product of the mass of the body and the acceleration produced by the forces, with motion in the direction of the resultant of the forces (second law of motion) or the law that for every force acting on a body, the body exerts a force having equal magnitude and the opposite direction along the same line of action as the original force (third law of motion or law of action and reaction)
three-point landing — an aircraft landing in which the two wheels of the main landing gear and the tail or nose wheel touch the ground simultaneously.
threshold agreement — an agreement between an employer and employees or their union to increase wages by a specified sum if inflation exceeds a specified level in a specified time
throw cold water on — having a relatively low temperature; having little or no warmth: cold water; a cold day.
to be headline news — to attract a lot of attention from newspapers
to have and to hold — to possess for life
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.
to lay down the law — If you say that someone lays down the law, you are critical of them because they give other people orders and they think that they are always right.
to play hard to get — If someone plays hard to get, they pretend not to be interested in another person or in what someone is trying to persuade them to do.
to plumb new depths — If you say that something plumbs new depths, you mean that it is worse than all the things of its kind that have existed before, even though some of them have been very bad.
to plumb the depths — If someone plumbs the depths of an unpleasant emotion or quality, they experience it or show it to an extreme degree.
trahison des clercs — a compromising of intellectual integrity, esp. for political reasons
trickle-down theory — an economic theory that monetary benefits directed especially by the government to big business will in turn pass down to and profit smaller businesses and the general public.
under the spotlight — If someone or something comes under the spotlight, they are thoroughly examined, especially by journalists and the public.
vinylidene chloride — a colorless, volatile, flammable liquid, C 2 H 2 Cl, that is copolymerized chiefly with vinyl chloride to form saran.
wesleyan methodists — a branch of the Methodist Church in its original form
what-do-you-call-it — whachamacallit.
whorled loosestrife — any of various plants belonging to the genus Lysimachia, of the primrose family, having clusters of usually yellow flowers, as L. vulgaris (garden loosestrife) or L. quadrifolia (whorled loosestrife)

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