20-letter words containing r, e, d, u, c, t

double-trailer truck — tandem trailer (def 1).
education department — the department of a local authority that is concerned with education, or the government department concerned with education
electoral boundaries — the way that a country or area is divided for the purposes of voting in an election
elementary education — the first six to eight years of a child's education
federal constitution — Constitution of the United States.
frequency modulation — FM.
fundamental particle — elementary particle.
fundamental research — research carried out to deepen understanding of the fundamental or basic principles of something
good driver discount — A good driver discount is a discount on insurance that is available to drivers who have no at-fault accidents and no traffic offenses during a particular period.
hard gelatin capsule — A hard gelatin capsule is a type of capsule that is usually used to contain medicine in the form of dry powder or very small pellets.
harvard architecture — (architecture) A computer architecture in which program instructions are stored in different memory from data. Each type of memory is accessed via a separate bus, allowing instructions and data to be fetched in parallel. Contrast: von Neumann architecture.
hit-and-run accident — a motor-vehicle accident in which the driver leaves the scene without stopping to give assistance, inform the police, etc
hot under the collar — the part of a shirt, coat, dress, blouse, etc., that encompasses the neckline of the garment and is sewn permanently to it, often so as to fold or roll over.
hydrostatic pressure — Hydrostatic pressure is the pressure exerted by a liquid that depends on how deep it is.
imported currantworm — the larva of any of several insects, as a sawfly, Nematus ribesii (imported currantworm) which infests and feeds on the leaves and fruit of currants.
in bad circumstances — (of a person) in a bad financial situation
in-service education — training and education given to employed teachers throughout their career
indian cucumber root — a North American plant, Medeola virginiana, of the lily family, having whorled leaves, nodding, greenish-yellow flowers, and an edible root.
industrial democracy — control of an organization by the people who work for it, esp by workers holding positions on its board of directors
industrial insurance — industrial life insurance.
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.
lieutenant commander — a commissioned officer ranking next below a commander and next above a lieutenant.
liquidity preference — (in Keynesian economics) the degree of individual preference for cash over less liquid assets.
macular degeneration — degeneration of the central portion of the retina, resulting in a loss of sharp vision.
mail-order catalogue — a catalogue of goods you can buy from a particular company by mail order
maintenance and cure — the right of an injured sailor to support and medical treatment.
medical underwriting — Medical underwriting is the use of medical or health status information in the evaluation of an applicant for life or health insurance.
metric hundredweight — a unit of weight equivalent to 50 kilograms.
midcourse correction — a navigational correction made in the course of a ship, airplane, rocket, or space vehicle at some point between the beginning and end of the journey.
multicast addressing — Ethernet addressing scheme used to send packets to devices of a certain type or for broadcasting to all nodes. The least significant bit of the most significant byte of a multi-cast address is one.
net domestic product — the gross domestic product minus an allowance for the depreciation of capital goods
net national product — the gross national product less allowance for depreciation of capital goods. Abbreviation: NNP.
newcastle-under-lyme — a town in W central England, in Staffordshire. Pop: 74 427 (2001)
nonaccidental injury — damage, such as a bruise, burn, or fracture, deliberately inflicted on a child or an old person
not mince your words — If you say that someone does not mince their words, you mean that they speak in a forceful and direct way, especially when saying something unpleasant to someone.
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.
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
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)
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
pound cost averaging — a method of accumulating capital by investing a fixed sum in a particular security at regular intervals, in order to achieve an average purchase price below the arithmetic average of the market prices on the purchase dates
prince rupert's drop — a glass bead in the shape of a teardrop, a by-product of the glass-making process, formed by molten glass falling into water. The body of the drop can withstand great force, for example a hammer blow, but the whole will explode if the tail is nipped or the surface scored
procedural agreement — regulations agreed between the parties to collective bargaining, defining the bargaining units, bargaining scope, procedures for collective bargaining, and the facilities to be provided to trade union representatives
production agreement — a contract concerning the production or manufacture of something
prohibited substance — a substance, such as a drug, etc, that is banned or forbidden by law or other authority
pseudoparenchymatous — (in certain fungi and red algae) a compact mass of tissue, made up of interwoven hyphae or filaments, that superficially resembles plant tissue.
public lending right — (in Britain) an act of Parliament that directs compensation to an author for the library loan of his or her book.
quadrantal corrector — either of two soft-iron spheres attached to each side of a binnacle, intended to correct the compass deviation (quadrantal deviation) resulting from magnetism from ferrous metal in a ship.
recursive definition — a definition consisting of a set of rules such that by repeated application of the rules the meaning of the definiendum is uniquely determined in terms of ideas that are already familiar.
reductio ad absurdum — a reduction to an absurdity; the refutation of a proposition by demonstrating the inevitably absurd conclusion to which it would logically lead.
redundancy agreement — an agreement over the sum of money given by an employer to an employee who has been made redundant

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