13-letter words containing a, m, o, r, i, s
- 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.
- 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.
- 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.”.
- malabsorbtion — Misspelling of malabsorption.
- malabsorption — faulty absorption of nutritive material from the intestine.
- 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.
- 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).
- 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.
- marketisation — Alternative spelling of marketization.
- marriage vows — promises made as part of wedding ceremony
- marsh trefoil — buck bean.
- martyrologies — Plural form of martyrology.
- master policy — a single policy covering a group of people, typically employees of a company, issued to an employer.
- masticatories — Plural form of masticatory.
- mastigophoran — Also, mastigophore [mas-ti-guh-fawr, -fohr] /ˈmæs tɪ gəˌfɔr, -ˌfoʊr/ (Show IPA). a protozoan of the phylum Mastigophora.
- mastigophoric — Carrying or wielding a whip.
- matripotestal — of or relating to the authority exercised by a mother or a mother's blood relatives.
- measuring rod — ruler, gauge, stick for measuring
- measuringworm — the larva of any geometrid moth, which progresses by bringing the rear end of the body forward and then advancing the front end.
- megasporangia — a sporangium containing megaspores.
- melodramatics — Melodramatic behavior, action, or writing.
- melodramatist — A writer of melodramas.
- memorabiliast — a person who collects mementos or souvenirs, as postcards or playbills.
- memorialising — Present participle of memorialise.
- mercerisation — A process of treating cotton with sodium hydroxide in order to make it more lustrous.
- meritocracies — Plural form of meritocracy.
- mesmerization — to hypnotize.
- 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.
- metalliferous — containing or yielding metal.
- 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.
- metropolitans — Plural form of metropolitan.
- microanalyses — Plural form of microanalysis.
- microanalysis — Chemistry. the analysis of very small samples of substances.
- microaneurysm — An extremely small aneurysm.