20-letter words containing t, o, h, e, d

hydrodesulfurization — desulfurization by catalytic agents of the sulfur-rich hydrocarbons obtained from petroleum or the like during cracking or hydrocracking.
hydrostatic pressure — Hydrostatic pressure is the pressure exerted by a liquid that depends on how deep it is.
hyperadrenocorticism — Cushing's syndrome.
hypodermic injection — the injection of a medicine or drug under the skin
in the public domain — able to be discussed and examined freely by the general public
independence of path — the property of a function for which the line integral has the same value along all curves between two specified points.
indicated horsepower — the horsepower of a reciprocating engine as shown by an indicator record. Abbreviation: ihp, IHP.
infrared photography — photography using film with an emulsion that is sensitive to infrared light, enabling it to be used in misty weather, in darkened interiors, or at night. It has applications in aerial surveys, the detection of forgeries, etc
internal hemorrhoids — Usually, hemorrhoids. Pathology. an abnormally enlarged vein mainly due to a persistent increase in venous pressure, occurring inside the anal sphincter of the rectum and beneath the mucous membrane (internal hemorrhoid) or outside the anal sphincter and beneath the surface of the anal skin (external hemorrhoid)
join-the-dots puzzle — a puzzle requiring you to connect a series of dots by drawing lines between them. If the dots are correctly connected, the result is a picture
jordan curve theorem — the theorem that the complement of a simple closed curve can be expressed as the union of two disjoint sets, each having as boundary the given curve.
juno and the paycock — a play (1924) by Sean O'Casey.
justifiable homicide — murder committed under extenuating circumstances
lead with one's chin — to act so imprudently as to invite disaster
least-squares method — a method of estimating values from a set of observations by minimizing the sum of the squares of the differences between the observations and the values to be found.
light-emitting diode — LED.
magnetohydrodynamics — the branch of physics that deals with the motion of electrically conductive fluids, especially plasmas, in magnetic fields. Abbreviation: MHD.
make head (n)or tail — If you say that you cannot make head nor tail of something or you cannot make head or tail of it, you are emphasizing that you cannot understand it at all.
make head or tail of — to attempt to understand (a problem, etc)
meta-dichlorobenzene — a colorless liquid, C 6 H 4 Cl 2 , soluble in alcohol and ether: used as a fumigant and insecticide.
multistep hydroplane — a motorship having a flat bottom built as a series of planes inclined forward, the ship planing on each from stem to stern as its speed increases.
new england theology — Calvinism as modified and interpreted by the descendants of the Puritans in New England, especially Jonathan Edwards, becoming the dominant theology there from about 1730 to 1880.
nondirective therapy — client-centered therapy.
north canadian river — a river in NE New Mexico, E Texas, and E Oklahoma, flowing SE to the Canadian River. 760 miles (1223 km) long.
northern white cedar — any of several chiefly coniferous trees valued for their wood, especially Chamaecyparis thyoides, of the eastern U.S., or Thuja occidentalis (northern white cedar) of northeastern North America.
not hold a candle to — to be inferior or contemptible in comparison with
not out of the woods — If something or someone is not out of the woods yet, they are still having difficulties or problems.
not worth the candle — not worth the price or trouble entailed (esp in the phrase the game's not worth the candle)
ode to a nightingale — a poem (1819) by Keats.
ode to the west wind — a poem (1820) by Shelley.
of (the) deepest dye — of the most marked, esp. the worst, sort
officer of the guard — an officer, acting under the officer of the day, who is responsible for the instruction, discipline, and performance of duty of the guard in a post, camp, or station. Abbreviation: OG, O.G.
old man of the woods — an edible, mild-tasting mushroom, Strobilomyces floccopus, occurring in coniferous woodlands of eastern North America.
on the drawing board — in the planning stage
on the shady side of — beyond (a given age); older than
on the starboard bow — within 45 degrees to the starboard of straight ahead
on the sunny side of — younger than (a specified age)
one's heart's desire — If you say that someone or something is your heart's desire, you mean that you want that person or thing very much.
ophthalmodynamometer — a device for determining the nearest point of ocular convergence.
order of the thistle — an ancient Scottish order of knighthood revived by James VII of Scotland in 1687. It consists of the sovereign, 16 knights brethren, and extra members created by statute. It is the equivalent of the Order of the Garter, and is usually conferred on Scots
orthopaedic mattress — a specially firm mattress designed to help correct or ameliorate the discomfort of disorders of the spine and joints
outside (of) the box — in a fresh, inventive, unconventional way
paint the town (red) — to go on a boisterous spree; carouse
pass the time of day — to exchange casual greetings (with an acquaintance)
paternal grandmother — the mother of someone's father
perpendicular gothic — the style of Gothic architecture in England during the 14th and 15th centuries, characterized by tracery having vertical lines, a four-centred arch, and fan vaulting
phenyldiethanolamine — a white, crystalline, slightly water-soluble substance, C 1 0 H 1 5 NO 2 , used in the manufacture of dyes and in organic synthesis.
phosphorus pentoxide — a white, deliquescent, crystalline powder, P 2 O 5 , that, depending upon the amount of water it absorbs, forms orthophosphoric acid, metaphosphoric acid, or pyrophosphoric acid, produced by the burning of phosphorus in dry air: used in the preparation of phosphoric acids, as a drying and dehydrating agent, and in organic synthesis.
photoconductive cell — Electronics. a photocell whose resistance varies according to the intensity of light falling on it.
physical double star — two stars that appear as one if not viewed through a telescope with adequate magnification, such as two stars that are separated by a great distance but are nearly in line with each other and an observer (optical double star) or those that are relatively close together and comprise a single physical system (physical double star)

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