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18-letter words containing d, e, l, i, m

  • mathematical model — a representation of a system, process, etc, in mathematical terms
  • matthias schleiden — Matthias Jakob [mah-tee-ahs yah-kawp] /mɑˈti ɑs ˈyɑ kɔp/ (Show IPA), 1804–81, German botanist.
  • maximum likelihood — greatest probability
  • mechanical drawing — drawing, as of machinery, done with the aid of rulers, scales, compasses, etc.
  • median lethal dose — the quantity of a lethal substance, as a poison or pathogen, or of ionizing radiation that will kill 50 percent of the organisms subjected to it in a specified time period. Symbol: LD 5 0.
  • medical dictionary — a specialized dictionary covering terms used in the health professions by doctors, nurses, and others involved in allied health care services. A dictionary with authoritative spellings and definitions is a particularly crucial resource in medicine, where a misspelling or misunderstanding can have unfortunate consequences for people under care. Print dictionaries in this field may be sorted alphabetically or may be categorized according to medical specializations or by the various systems in the body, as the immune system and the respiratory system. The online Medical Dictionary on Dictionary.com allows alphabetical browsing in the combined electronic versions of more than one authoritative medical reference, insuring access to correct spellings, as well as immediate, direct access to a known search term typed into the search box on the site: A medical dictionary reveals that large numbers of medical terms are formed from the same Latin and Greek parts combined and recombined.
  • medical profession — the body of people who work as doctors of medicine
  • medical technician — a person, not a qualified doctor, who does practical work in a hospital
  • mendel's first law — the principle, originated by Gregor Mendel, stating that during the production of gametes the two copies of each hereditary factor segregate so that offspring acquire one factor from each parent.
  • menendez de aviles — Pedro [pe-th raw] /ˈpɛ ðrɔ/ (Show IPA), 1519–74, Spanish admiral and colonizer: founder of St. Augustine, Florida 1565.
  • mental retardation — Usually Offensive. a developmental disorder characterized in varying degrees by a subnormal ability to learn, a substantially low IQ, and impaired social adjustment.
  • mercurous chloride — calomel.
  • mercury delay line — (storage, history)   An archaic first-in first-out fixed time period data storage device using acoustic transducers to transmit data as waves in a trough or tube of mercury. EDSAC (Cambridge) and UNIVAC I used delay lines.
  • metabolic syndrome — Pathology. a group of medical conditions present simultaneously in a patient, as high blood pressure, low HDL cholesterol levels, and an excess of abdominal fat, that increases a person's risk of heart disease, stroke, and diabetes. Also called insulin resistance syndrome.
  • methylated spirits — ethyl alcohol denatured with methyl alcohol for the purpose of preventing its use as an alcoholic beverage.
  • methylene chloride — a colorless, volatile liquid, CH 2 Cl 2 , used chiefly as a solvent, as a refrigerant, and as a local anesthetic in dentistry.
  • methylprednisolone — A synthetic glucocorticoid drug, with chemical formula C22H30O5.
  • mexican gold poppy — an annual wildflower, Eschscholzia mexicana, having orange-gold, cup-shaped flowers, found in dry, mountainous regions of western North America.
  • mid-atlantic ridge — a north-south suboceanic ridge in the Atlantic Ocean from Iceland to Antarctica on whose crest are several groups of islands; shown by plate tectonics to be the axis along which North America has split away from Eurasia, and along which South America has split away from Africa.
  • middle common room — (in certain universities and colleges) a common room for the use of postgraduate students
  • middle high german — the High German language of the period 1100–1500. Abbreviation: MHG.
  • middle paleolithic — See under Paleolithic.
  • middle-of-the-road — favoring, following, or characterized by an intermediate position between two extremes, especially in politics; moderate.
  • middleburg heights — a town in N Ohio.
  • milkweed butterfly — monarch butterfly.
  • mineralocorticoids — Plural form of mineralocorticoid.
  • misplaced modifier — Grammar. a word, phrase, or clause that seems to refer to or modify an unintended word because of its placement in a sentence, as when young in When young, circuses appeal to all of us.
  • mixed martial arts — Mixed martial arts is a sport in which two people fight by hitting, kicking, and holding each other, both in a standing position and on the ground.
  • mixed-flow turbine — a water turbine in which water flows radially and axially through the rotating vanes
  • mobile data system — a system consisting of a client computer requesting information and a server supplying this information
  • modelling language — (language)   Possibly a kind of programming language designed for describing models and their behaviour. See also data modelling, object relational model, simulation, UML, VRML.
  • modular arithmetic — arithmetic in which numbers that are congruent modulo a given number are treated as the same. Compare congruence (def 2), modulo, modulus (def 2b).
  • molecular medicine — the study of disease or injury at the molecular or cellular level.
  • mordovian republic — a constituent republic of W central Russia, in the middle Volga basin. Capital: Saransk. Pop: 888 700 (2002). Area: 26 200 sq km (10 110 sq miles)
  • moulding technique — the technique used to shape a material into a frame or mould
  • mousseline de soie — a thin, stiff silk or rayon fabric.
  • mucopolysaccharide — (formerly) glycosaminoglycan.
  • multi-user dungeon — Multi-User Dimension
  • multimedia machine — machines that allow users to control and manipulate sound, video, text and graphics
  • multiply-connected — connected but not simply-connected.
  • mutual aid society — A mutual aid society is an organization that provides benefits or other help to its members when they are affected by things such as death, sickness, disability, old age, or unemployment.
  • my lips are sealed — If you tell someone that your lips are sealed, you are promising them that you will keep a secret that they have told you.
  • negligent homicide — a criminal charge brought against people who, through criminal negligence, allow others to die
  • nickel-and-dime it — to succeed or obtain something gradually by the repeated expenditure of small sums or the slow gathering of votes, power, money, etc. in small increments
  • nickeled-and-dimed — of little or no importance; trivial; petty: a nickel-and-dime business that soon folded.
  • non-denominational — of or relating to a denomination or denominations.
  • non-fundamentalist — (sometimes initial capital letter) a religious movement characterized by a strict belief in the literal interpretation of religious texts, especially within American Protestantism and Islam.
  • nonstriated muscle — smooth muscle
  • normally aspirated — A normally aspirated or naturally aspirated engine breathes air at atmospheric pressure.
  • numerical identity — the relation that holds between two relata when they are the selfsame entity, that is, when the terms designating them have the same reference
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