18-letter words containing m, a, r, c, h, l
- mergui archipelago — a group of over 200 islands in the Andaman Sea, off the Tenasserim coast of S Myanmar: mountainous and forested
- methacrylate resin — an acrylic resin formed by polymerizing the esters or amides of methacrylic acid.
- moccasin telegraph — the transmission of rumour or secret information; the grapevine
- 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).
- monte carlo method — a technique for numerically approximating the solution of a mathematical problem by studying the distribution of some random variable, often generated by a computer.
- mucopolysaccharide — (formerly) glycosaminoglycan.
- muscular dystrophy — a hereditary disease characterized by gradual wasting of the muscles with replacement by scar tissue and fat, sometimes also affecting the heart.
- nonpharmacological — Not pharmacological.
- palm beach gardens — a city in SE Florida, near North Palm Beach.
- palmer archipelago — a group of islands in the South Atlantic Ocean, off the NW coast of the Antarctic Peninsula.
- phantasmagorically — having a fantastic or deceptive appearance, as something in a dream or created by the imagination.
- philharmonic pitch — a standard of pitch in which A above middle C is established at 440 vibrations per second.
- physical chemistry — the branch of chemistry dealing with the relations between the physical properties of substances and their chemical composition and transformations.
- plumber's merchant — a shop or business that sells things needed for the job of installing and repairing pipes, fixtures, etc, for water, drainage, and gas
- polychromatophilic — having an affinity for more than one kind of stain, especially for acid, neutral, and basic stains, as polychromatophilic erythroblasts characteristic of pernicious anemia.
- potassium chlorate — a white or colorless, crystalline, water-soluble, poisonous solid, KClO 3 , used chiefly as an oxidizing agent in the manufacture of explosives, fireworks, matches, bleaches, and disinfectants.
- potassium chloride — a white or colorless, crystalline, water-soluble solid, KCl, used chiefly in the manufacture of fertilizers and mineral water, and as a source of other potassium compounds.
- psychogalvanometer — a type of galvanometer for detecting and measuring psychogalvanic currents.
- psychopharmacology — the branch of pharmacology dealing with the psychological effects of drugs.
- pyromucic aldehyde — furfural.
- repayment schedule — a document detailing the specific terms of a borrower's loan, such as monthly payment, interest rate, due dates etc
- salem witch trials — 17th-century witchcraft case
- spherical geometry — the branch of geometry that deals with figures on spherical surfaces.
- stem-cell research — research that is carried out on stem cells for use in medicine
- stoichiometrically — of or relating to stoichiometry.
- stokely carmichael — Hoagland Howard [hohg-luh nd] /ˈhoʊg lənd/ (Show IPA), ("Hoagy") 1899–1981, U.S. songwriter and musician.
- survival mechanism — something you or your body does automatically, in order to survive in a dangerous or unpleasant situation
- tetrachloromethane — carbon tetrachloride.
- thermal efficiency — the ratio of the work output of a heat engine to the heat input expressed in the same units of energy.
- thermonuclear bomb — hydrogen bomb.
- white-collar crime — any of various crimes, as embezzlement, fraud, or stealing office equipment, committed by business or professional people while working at their occupations.
- world championship — an international competition in a particular sport or activity for people all around the world