13-letter words containing o, a, r, s, m
- katharometers — Plural form of katharometer.
- keratomycosis — Fungal infection of the cornea.
- kerosene lamp — light fuelled by paraffin
- king's ransom — an extremely large amount of money: The painting was sold for a king's ransom.
- krishna menon — Vengalil Krishnan [ven-gah-leel krish-nuh n] /vɛnˈgɑ lil ˈkrɪʃ nən/ (Show IPA), 1897–1974, Indian politician and statesman.
- lady mayoress — the wife of a lord mayor
- lambeosaurine — Any crested hadrosaurid dinosaur of the subfamily Lambeosaurinae.
- laryngotomies — Plural form of laryngotomy.
- liberationism — the principles of liberationists
- lowerclassman — underclassman.
- lowerclassmen — underclassman.
- lump of sugar — lump1 (def 4).
- lymphosarcoma — a malignant tumor in lymphatic tissue, caused by the growth of abnormal lymphocytes.
- macro-segment — a stretch of speech preceded and followed but not interrupted by a pause.
- macrocephalus — Alternative spelling of macrocephalous.
- macroclimates — Plural form of macroclimate.
- macrodynamics — Large-scale dynamics.
- macroorganism — an organism that can be seen with the naked eye.
- macroparasite — (biology) Any parasite that is visible to the naked eye.
- macroscopical — Macroscopic.
- macrovascular — Of or pertaining to the larger blood vessels.
- madre de dios — a river in Peru and Bolivia, flowing E to the Beni River. 900 miles (1450 km) long.
- magnesiferous — (geology) Containing magnesium.
- magnetiferous — (dated) Producing or conducting magnetism.
- magnetographs — Plural form of magnetograph.
- magnetometers — Plural form of magnetometer.
- 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 premise — Logic. an argument the conclusion of which is supported by two premises, of which one (major premise) contains the term (major term) that is the predicate of the conclusion, and the other (minor premise) contains the term (minor term) that is the subject of the conclusion; common to both premises is a term (middle term) that is excluded from the conclusion. A typical form is “All A is C; all B is A; therefore all B is C.”.
- major release — (programming) A release of a piece of software which is not merely a revision or a bug fix release but which contains substantial changes (e.g., an overhaul of the interface, change in compatibility). Traditionally, major releases are numbered as X.0; for example, WordPerfect 6.0 is a major release, significantly different from any previous version; whereas WordPerfect 6.1 has only minor changes, and is, thus, only a revision. See also major delivery.
- make sport of — to mock or ridicule; poke fun at
- malabar coast — a region along the entire SW coast of India, extending from the Arabian Sea inland to the Western Ghats.
- malabsorbtion — Misspelling of malabsorption.
- malabsorption — faulty absorption of nutritive material from the intestine.
- malacostracan — belonging or pertaining to the crustacean subclass Malacostraca, which includes the lobsters, shrimps, crabs, etc.
- maladroitness — lacking in adroitness; unskillful; awkward; bungling; tactless: to handle a diplomatic crisis in a very maladroit way.
- malapropistic — an act or habit of misusing words ridiculously, especially by the confusion of words that are similar in sound.
- malariologist — An expert in malaria.
- malformations — Plural form of malformation.
- maltese cross — a cross having four equal arms that expand in width outward.
- mammaliferous — containing the remains of mammals
- mandatoriness — The quality or state of being mandatory.
- manganiferous — containing manganese.
- manufactories — Plural form of manufactory.
- marching song — a song with the rhythm of a march, esp sung by marching soldiers
- marchionesses — Plural form of marchioness.
- mare frigoris — (Sea of Cold) a dark plain in the northern hemisphere, in the first and second quadrants of the face of the moon: about 55 miles (90 km) wide at its narrowest width and 750 miles (1200 km) long: about 67,000 sq. mi. (174,000 sq. km).
- margaret rose — 1930–2002, English princess (daughter of George VI; sister of Elizabeth II).
- marginal cost — the cost of one additional unit of any item produced or bought in quantity.
- mariposa lily — any lily of the genus Calochortus, of the western U.S. and Mexico, having tuliplike flowers of various colors.
- mark my words — If you say 'mark my words' to someone, you are emphasizing that something you have just warned them about is very likely to happen, especially when you think they should change their attitude or behaviour to prevent it.