15-letter words containing d, r, e, a
- mass-producible — to produce or manufacture (goods) in large quantities, especially by machinery.
- massed practice — learning with no intervals or short intervals between successive bouts of learning
- master cylinder — the hydraulic pump of an automotive braking system that contains a cylinder and one or two pistons, is actuated by the brake pedal, and supplies hydraulic fluid under pressure to the brakes at each wheel.
- master's degree — a degree awarded by a graduate school or department, usually to a person who has completed at least one year of graduate study.
- mastoid process — a large, bony prominence on the base of the skull behind the ear, containing air spaces that connect with the middle ear cavity.
- maternity dress — a dress worn by a pregnant woman and which is designed to allow for the changes in body size which take place during pregnancy
- matrix bar code — a type of 2D bar code that stores data in a matrix of geometrically shaped dark and light cells that represent bits. See also QR code.
- meadow mushroom — any of various fleshy fungi including the toadstools, puffballs, coral fungi, morels, etc.
- medal for merit — a medal awarded by the U.S. to a civilian for distinguished service to the country: discontinued after World War II.
- media converter — (networking) A component used in Ethernet, although it is not part of the IEEE standard. The IEEE standard states that all segments must be linked with repeaters. Media converters were developed as a simpler, cheaper alternative to repeaters. However, in the 1990s the cost difference between the two is negligible.
- medical history — the past background of a person in terms of health
- medical officer — a doctor of medicine who serves in the armed forces in a medical capacity
- medical records — written information about a person's health during their life to date
- medical tourism — tourist travel for the purpose of receiving medical treatment or improving health or fitness: The spiraling cost of healthcare has contributed to the growth of medical tourism. Also called health tourism.
- medieval breton — the Breton language of the Middle Ages, usually dated from the 12th to the mid-17th centuries.
- medieval hebrew — the Hebrew language as used from the 6th to the 13th centuries a.d.
- medullary canal — the central area of a bone, containing marrow
- mental disorder — any of the various forms of psychosis or severe neurosis.
- meridian circle — a transit instrument provided with a graduated vertical scale, used to measure the declinations of heavenly bodies and to determine the time of meridian transits.
- mermaid's purse — the horny or leathery egg case of certain cartilaginous fishes, as skates.
- metamorphosised — Simple past tense and past participle of metamorphosise.
- michael faraday — Michael, 1791–1867, English physicist and chemist: discoverer of electromagnetic induction.
- mid-ocean ridge — any of several seismically active submarine mountain ranges that extend through the Atlantic, Indian, and South Pacific oceans: each is hypothesized to be the locus of seafloor spreading.
- middle american — average middle-class Americans as a group, as distinguished from the rich or poor or the politically extreme.
- midgard serpent — a serpent, the child of Loki and Angerboda, who lies wrapped around the world, tail in mouth, and is destined to kill and to be killed by Thor at Ragnarok; Jormungand.
- midsummer's day — Midsummer's Day or Midsummer Day is the 24th of June.
- mineral kingdom — minerals collectively.
- minidisc player — a device for playing minidiscs
- minority leader — the party member who directs the activities of the minority party on the floor of a legislative body, as of the U.S. Congress.
- mis-categorized — to arrange in categories or classes; classify.
- misapprehending — Present participle of misapprehend.
- misappropriated — to put to a wrong use.
- missile address — ICBM address
- moderate breeze — a wind of 13–18 miles per hour (5.8–8 m/sec).
- moderate-income — of or relating to those with a close-to-average income within the overall population.
- modern language — one of the literary languages currently in use in Europe, as French, Spanish, or German, treated as a departmental course of study in a school, college, or university.
- modulo operator — (mathematics) (mod) The operator that returns the remainder after integer division of its first argument by its second. Written as "%" in C and some other languages. Where the second argument is a power of two, the result can be calculated much more quickly using bitwise and with the appropriate bit-mask.
- mogi das cruzes — a city in SE Brazil, E of São Paulo.
- mole salamander — ambystomid.
- molecular cloud — a cool dense interstellar region composed of a wide variety of molecules, mainly hydrogen, plus some dust, in which stars are forming
- mollier diagram — a graph showing the enthalpy of a substance as a function of its entropy when some physical property of the substance, as temperature or pressure, is kept at a specified constant value.
- monosaccharides — Plural form of monosaccharide.
- monounsaturated — of or noting a class of fats that lack a hydrogen bond at one point on the carbon chain and that are associated with a low cholesterol content of the blood.
- moral turpitude — conduct that is regarded as immoral.
- morbidity table — A morbidity table is a statistical table that shows the proportion of people that are expected to become sick or injured at each age.
- morphine addict — a person who is addicted to the drug morphine
- mortgage lender — a financial institution which provides money to borrowers for mortgages
- muslim calendar — the lunar calendar used by Muslims and reckoned from a.d. 622: the calendar year consists of 354 days and contains 12 months: Moharram, Safar, Rabi I, Rabi II, Jumada I, Jumada II, Rajab, Shaban, Ramadan, Shawwal, Dhu ʾl-Qaʿda, and Dhu ʾl-hijjah. In leap years the month Dhu ʾl-hijjah contains one extra day.
- mustard plaster — a black mixture of mustard and rubber placed on a cloth and applied to the skin as a counterirritant.
- neanderthal man — a member of an extinct subspecies of powerful, physically robust humans, Homo sapiens neanderthalensis, that inhabited Europe and western and central Asia c100,000–40,000 b.c.