13-letter words containing i, s, o, m, e
- lymphopoiesis — the formation of lymphocytes.
- macroclimates — Plural form of macroclimate.
- macroparasite — (biology) Any parasite that is visible to the naked eye.
- 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.
- magnetisation — Alternative spelling of magnetization.
- magnetooptics — the branch of physics that deals with magnetooptic phenomena.
- magnetostatic — Of or pertaining to magnetostatics.
- magnoliaceous — belonging to the plant family Magnoliaceae.
- 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.”.
- make position — the situation in which a short vowel may be regarded as long, that is, when it occurs before two or more consonants
- maladroitness — lacking in adroitness; unskillful; awkward; bungling; tactless: to handle a diplomatic crisis in a very maladroit way.
- maliciousness — full of, characterized by, or showing malice; intentionally harmful; spiteful: malicious gossip.
- mammaliferous — containing the remains of mammals
- mammoplasties — Plural form of mammoplasty.
- mandatoriness — The quality or state of being mandatory.
- manganiferous — containing manganese.
- manifestation — an act of manifesting.
- mansion house — the residence of the Lord Mayor of London
- manufactories — Plural form of manufactory.
- 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).
- 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.
- mastoidectomy — the removal of part of a mastoid process, usually for draining an infection.
- mating season — the period during each year when a particular bird, animal, or fish mates
- matripotestal — of or relating to the authority exercised by a mother or a mother's blood relatives.
- matt emulsion — a water-based paint which is not shiny when it dries
- 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.
- mechanisation — Alternative spelling of mechanization.
- medicamentous — of or relating to medicaments
- medicine shop — (in Malaysia) a Chinese chemist's shop where traditional herbs are sold as well as modern drugs. It is not, however, a dispensary for prescribed medicines
- medicine show — a traveling troupe, especially in the late 1800s, offering entertainment in order to attract customers for the patent medicines or purported cures proffered for sale.
- meeting house — a house or building for religious worship.
- meeting-house — a house or building for religious worship.
- meetinghouses — Plural form of meetinghouse.
- megaloblastic — an abnormally large, immature, and dysfunctional red blood cell found in the blood of persons with pernicious anemia or certain other disorders.
- megalomaniacs — Plural form of megalomaniac.
- megalopolises — Plural form of megalopolis.
- megasporangia — a sporangium containing megaspores.
- melancholious — (obsolete) melancholy.
- melanogenesis — the production of melanin
- mellifluously — sweetly or smoothly flowing; sweet-sounding: a mellifluous voice; mellifluous tones.
- melodiousness — The property of being melodious.