20-letter words containing d, h, i, m
- 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
- 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)
- justifiable homicide — murder committed under extenuating circumstances
- light-emitting diode — LED.
- like death warmed up — very ill
- madwoman of chaillot — a satirical comedy (1945) by Jean Giraudoux.
- magdeburg hemisphere — one of a pair of hemispherical cups from which air can be evacuated when they are placed together: used to demonstrate the force of air pressure.
- magnetohydrodynamics — the branch of physics that deals with the motion of electrically conductive fluids, especially plasmas, in magnetic fields. Abbreviation: MHD.
- mail exchange record — (messaging) (MX Record) A DNS resource record type that says which SMTP server handles electronic mail for a particular domain. E.g. the MX record foo.co.uk. 1054 IN MX 10 mail.foo.co.uk. means that mail for an address like "[email protected]" should be sent to "mail.foo.co.uk". There can be several servers for a domain. The "10" is a priority - the server with the lowest number will be tried first.
- 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)
- matched-pairs design — (of an experiment) concerned with measuring the values of the dependent variables for pairs of subjects that have been matched to eliminate individual differences and that are respectively subjected to the control and the experimental condition
- mechanical advantage — the ratio of output force to the input force applied to a mechanism.
- mechanical impedance — impedance (def 2).
- mechanical-impedance — Electricity. the total opposition to alternating current by an electric circuit, equal to the square root of the sum of the squares of the resistance and reactance of the circuit and usually expressed in ohms. Symbol: Z.
- meta-dichlorobenzene — a colorless liquid, C 6 H 4 Cl 2 , soluble in alcohol and ether: used as a fumigant and insecticide.
- metric hundredweight — a unit of weight equivalent to 50 kilograms.
- 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.
- nineteenth amendment — an amendment to the U.S. Constitution, ratified in 1920, guaranteeing women the right to vote.
- orthopaedic mattress — a specially firm mattress designed to help correct or ameliorate the discomfort of disorders of the spine and joints
- pass the time of day — to exchange casual greetings (with an acquaintance)
- 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.
- potassium dichromate — an orange-red crystalline soluble solid substance that is a good oxidizing agent and is used in making chrome pigments and as a bleaching agent. Formula: K2Cr2O7
- pride of the morning — light mist or precipitation observed at sea in the morning and regarded as indicating a fine day.
- quantum field theory — any theory in which fields are treated by the methods of quantum mechanics; each field can then be regarded as consisting of particles of a particular kind, which may be created and annihilated.
- rheumatoid arthritis — a chronic autoimmune disease characterized by inflammation of the joints, frequently accompanied by marked deformities, and ordinarily associated with manifestations of a general, or systemic, affliction.
- ride on shank's mare — to walk
- spiral of archimedes — a curve that is the locus of a point that moves outward with uniform speed along a vector, beginning at the origin, while the vector rotates about the origin with uniform angular velocity. Equation (in polar coordinates): r = aθ.
- stallman, richard m. — Richard Stallman
- the (great) pyramids — the three large pyramids at Gîza, Egypt: the largest is the Pyramid of Khufu
- the garment industry — the manufacturing of items of clothing
- the hearing impaired — people whose hearing is partially defective
- the methodist church — a group of people within the Christian religion who follow a system of faith and practice initiated by the English preacher John Wesley (1703–91) and his followers
- thermal conductivity — the amount of heat per unit time per unit area that can be conducted through a plate of unit thickness of a given material, the faces of the plate differing by one unit of temperature.
- thermodynamic system — a system whose states of equilibrium can be specified by a few macroscopic properties.
- thioantimonious acid — any of a group of hypothetical acids, H3SbS3, HSbS2, and H4Sb2S5, known only in the forms of their salts in solution
- thirteenth amendment — an amendment to the U.S. Constitution, ratified in 1865, abolishing slavery.
- three-dimensionality — having, or seeming to have, the dimension of depth as well as width and height.
- tom, dick, and harry — the ordinary person; people generally; everyone: They invited every Tom, Dick, and Harry to the party.
- toxic shock syndrome — a rapidly developing, sometimes fatal infection characterized by sudden onset of fever, gastrointestinal upsets, a sunburnlike rash, and a drop in blood pressure: caused by a Staphylococcus aureus toxin and occurring especially in menstruating women using high-absorbency tampons. Abbreviation: TSS.
- tribromoacetaldehyde — bromal.
- triphenylmethane dye — any of a great number of dyes, as gentian violet, fuchsin, and rosaniline, produced from triphenylmethane by replacement of the ring hydrogen atoms with hydroxy, amino, sulfo, or other atoms or groups.
- twiddle one's thumbs — to turn about or play with lightly or idly, especially with the fingers; twirl.
- twisted stomach worm — stomach worm.
- under the impression — If you are under the impression that something is the case, you believe that it is the case, usually when it is not actually the case.
- under the microscope — If you say that something is under the microscope, you mean that it is being studied very closely, usually because it is believed that something is wrong with it.
- university of durham — (body, education) A busy research and teaching community in the historic cathedral city of Durham, UK (population 61000). Its work covers key branches of science and technology and traditional areas of scholarship. Durham graduates are in great demand among employers and the University helps to attract investment into the region. It provides training, short courses, and expertise for industry. Through its cultural events, conferences, tourist business and as a major employer, the University contributes in a wide social and economic sense to the community. Founded in 1832, the University developed in Durham and Newcastle until 1963 when the independent University of Newcastle upon Tyne came into being. Durham is a collegiate body, with 14 Colleges or Societies which are a social and domestic focus for students. In 1992, the Universities of Durham and Teesside launched University College, Stockton-on-Tees, which has 190 students in the first year.
- uranium hexafluoride — a colorless, water-insoluble, crystalline, volatile solid, UF 6 , used in its gaseous state in separating uranium 235 from uranium.
- visual merchandising — Visual merchandising is the use of attractive displays and floor plans to increase customer numbers and sales volumes.