13-letter words containing m, e, r, t, h
- iatrochemical — relating to iatrochemistry or iatrochemists
- immunotherapy — treatment designed to produce immunity to a disease or enhance the resistance of the immune system to an active disease process, as cancer.
- impact wrench — an electric or pneumatic power wrench with interchangeable toolhead attachments, used for installing and removing nuts, bolts, and screws.
- imperial moth — a yellow moth, Eacles imperialis, having a diagonal band of pinkish brown or purple: the hairy larvae feed on the leaves of hickory, oak, etc.
- inductothermy — the production of fever by means of electromagnetic induction.
- initial rhyme — beginning rhyme.
- isobathytherm — a line on a chart or diagram of a body of water, connecting depths having the same temperature.
- isodrosotherm — a line on a weather map or chart connecting points having an equal dew point.
- isothermobath — a line drawn on a diagram of a vertical section of the ocean connecting all points having equal temperature.
- katharometers — Plural form of katharometer.
- kinematograph — cinematograph.
- lead chromate — a yellow crystalline compound, PbCrO 4 , toxic, insoluble in water: used as an industrial paint pigment.
- light mineral — any rock-forming mineral that has a specific gravity of less than 2.8 and is generally light in color.
- lucifer match — friction match.
- lump together — If a number of different people or things are lumped together, they are considered as a group rather than separately.
- macrolecithal — megalecithal.
- magnetographs — Plural form of magnetograph.
- magnetosphere — the outer region of the earth's ionosphere, where the earth's magnetic field controls the motion of charged particles, as in the Van Allen belts. Compare magnetopause.
- major prophet — any of a group of Old Testament prophets, including Isaiah, Jeremiah, and Ezekiel.
- marbled white — any butterfly of the satyrid genus Melanargia, with panelled black-and-white wings, but technically a brown butterfly; found in grassland
- maria theresa — 1717–80, archduchess of Austria; queen of Hungary and Bohemia 1740–80 (wife of Francis II; mother of Joseph II, Leopold II, Marie Antoinette).
- marsh trefoil — buck bean.
- martin luther — Martin [mahr-tn;; German mahr-teen] /ˈmɑr tn;; German ˈmɑr tin/ (Show IPA), 1483–1546, German theologian and author: leader, in Germany, of the Protestant Reformation.
- martini-henry — a breech-loaded .45 caliber rifle adopted in 1871 as the standard British service weapon, using a center-fire metallic cartridge filled with black powder.
- marx brothers — the. a US family of film comedians, esp Arthur Marx, known as Harpo (1888–1964), Herbert Marx, known as Zeppo (1901–79), Julius Marx, known as Groucho (1890–1977), and Leonard Marx, known as Chico (1886–1961). Their films include Animal Crackers (1930), Monkey Business (1931), Horsefeathers (1932), Duck Soup (1933), and A Day at the Races (1937)
- mass hysteria — a condition affecting a group of persons, characterized by excitement or anxiety, irrational behavior or beliefs, or inexplicable symptoms of illness.
- master switch — a switch that can be used to turn on or off the supply of electricity to a building or to certain equipment
- matched order — an order placed with a broker to buy a specified stock at a price above the market price with the intention of immediately selling the stock through another broker at the same price. It is designed to give the appearance of active trading in the stock.
- matthew paris — Matthew, Matthew of Paris.
- megawatt hour — a unit of energy equal to the work done by a power of a million watts in one hour
- mephobarbital — The drug methylphenobarbital.
- merchant bank — a private banking firm engaged chiefly in investing in new issues of securities and in accepting bills of exchange in foreign trade.
- merchant fees — Merchant fees are money charged by a merchant service to a vendor for processing credit card transactions.
- merchant flag — the ensign used by all ships engaged in commerce, fishing, etc.
- merchant navy — commercial ships
- merchant ship — law: commercial vessel
- merrythoughts — Plural form of merrythought.
- messerschmitt — any of several types of fighter aircraft extensively used by the German air force in World War II, especially the ME-109.
- metachromasia — A characteristic change in the colour of staining carried out in biological tissues, exhibited by certain aniline dyes when they bind to particular substances present in these tissues, called chromotropes.
- metachromatic — change of color, especially that due to variation in the temperature of a body.
- metaheuristic — An experimental heuristic method for solving a general class of computational problems by combining user procedures in the hope of obtaining a more efficient or robust procedure.
- metallography — the study of the structure of metals and alloys by means of microscopy.
- metamorphosed — to change the form or nature of; transform.
- metamorphoses — a series of mythological tales or legends in verse (a.d. 7–8) by Ovid.
- metamorphosis — Biology. a profound change in form from one stage to the next in the life history of an organism, as from the caterpillar to the pupa and from the pupa to the adult butterfly. Compare complete metamorphosis.
- metamorphotic — Of or relating to metamorphosis.
- metanephridia — Plural form of metanephridium.
- metaphoricity — The power of a metaphor.
- meteor shower — the profusion of meteors observed when the earth passes through a meteor swarm.
- methocarbamol — a substance, C 1 1 H 1 5 NO 5 , used as a muscle relaxant in combination with other drugs in the treatment of acute, painful musculoskeletal conditions.