13-letter words containing m, a, o, s
- keratomycosis — Fungal infection of the cornea.
- kerosene lamp — light fuelled by paraffin
- kim young sam — born 1927, president of South Korea 1993–98.
- king's ransom — an extremely large amount of money: The painting was sold for a king's ransom.
- kleptomaniacs — Plural form of kleptomaniac.
- krishna menon — Vengalil Krishnan [ven-gah-leel krish-nuh n] /vɛnˈgɑ lil ˈkrɪʃ nən/ (Show IPA), 1897–1974, Indian politician and statesman.
- kuskokwim bay — an inlet of the Bering Sea in Alaska. Length: about 160 km (100 miles)
- lady mayoress — the wife of a lord mayor
- lamb's tongue — a molding having a deep, symmetrical profile ending in a narrow edge, as in a sash bar.
- lambeosaurine — Any crested hadrosaurid dinosaur of the subfamily Lambeosaurinae.
- lamellaphones — Plural form of lamellaphone.
- laminectomies — Plural form of laminectomy.
- laryngotomies — Plural form of laryngotomy.
- leiomyomatous — a benign tumor composed of nonstriated muscular tissue.
- leishmaniosis — Alt form leishmaniasis.
- let off steam — a blast of air or wind: to clean machinery with a blow.
- liberationism — the principles of liberationists
- lighthouseman — a lighthouse keeper
- loathsomeness — The property or nature that gives rise to revulsion, that inspires loathing.
- lowerclassman — underclassman.
- lowerclassmen — underclassman.
- lump of sugar — lump1 (def 4).
- lymphangiomas — Plural form of lymphangioma.
- lymphatolysis — destruction of lymphatic vessels or of lymphoid tissue.
- lymphoblastic — (US, cytology, immunology) Of or pertaining to a lymphoblast.
- lymphomatosis — lymphoma spread throughout the body.
- 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.
- magnanimously — In a magnanimous manner; with greatness of mind.
- magnesiferous — (geology) Containing magnesium.
- magnet school — a public school with special programs and instruction that are not available elsewhere in a school district and that are specially designed to draw students from throughout a district, especially to aid in desegregation.
- magnetiferous — (dated) Producing or conducting magnetism.
- magnetisation — Alternative spelling of magnetization.
- magnetographs — Plural form of magnetograph.
- magnetometers — Plural form of magnetometer.
- magnetooptics — the branch of physics that deals with magnetooptic phenomena.
- magnetosheath — the region between the magnetopause of the earth or of some other planet and the shock front caused by the solar wind.
- 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.
- magnetostatic — Of or pertaining to magnetostatics.
- magnitudinous — size; extent; dimensions: to determine the magnitude of an angle.
- 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.”.