13-letter words containing o, s, m, u
- kuskokwim bay — an inlet of the Bering Sea in Alaska. Length: about 160 km (100 miles)
- 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.
- leiomyomatous — a benign tumor composed of nonstriated muscular tissue.
- libel tourism — the act of suing a writer for alleged defamation in a foreign jurisdiction where there are weak libel laws.
- lighthouseman — a lighthouse keeper
- luminous flux — the rate of transmission of luminous energy: expressed in lumens.
- lump of sugar — lump1 (def 4).
- luxembourgish — Also, Luxembourgish [luhk-suh m-bur-gish] /ˈlʌk səmˌbɜr gɪʃ/ (Show IPA). Letzeburgesch.
- macrocephalus — Alternative spelling of macrocephalous.
- macrovascular — Of or pertaining to the larger blood vessels.
- magnanimously — In a magnanimous manner; with greatness of mind.
- magnesiferous — (geology) Containing magnesium.
- magnetiferous — (dated) Producing or conducting magnetism.
- magnitudinous — size; extent; dimensions: to determine the magnitude of an angle.
- magnoliaceous — belonging to the plant family Magnoliaceae.
- maliciousness — full of, characterized by, or showing malice; intentionally harmful; spiteful: malicious gossip.
- mammaliferous — containing the remains of mammals
- manganiferous — containing manganese.
- manipulations — Plural form of manipulation.
- manon lescaut — a novel (1731) by Antoine François Prévost.
- mansion house — the residence of the Lord Mayor of London
- manufactories — Plural form of manufactory.
- marrow squash — any of several squashes having a smooth surface, an oblong shape, and a hard rind.
- marvelousness — The quality or state of being marvelous.
- matt emulsion — a water-based paint which is not shiny when it dries
- mayor's court — a city court presided over by a mayor.
- mcmurdo sound — an inlet of Ross Sea, in Antarctica, N of Victoria Land.
- meadow fescue — a European fescue, Festuca pratensis, of the grass family, grown for pasture in North America.
- measure up to — to fulfil (expectations, standards, etc)
- 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.
- meat products — foods that consist of or contain meat
- medicamentous — of or relating to medicaments
- meeting house — a house or building for religious worship.
- meeting-house — a house or building for religious worship.
- meetinghouses — Plural form of meetinghouse.
- melancholious — (obsolete) melancholy.
- melanochroous — having dark-coloured or black skin
- mellifluously — sweetly or smoothly flowing; sweet-sounding: a mellifluous voice; mellifluous tones.
- melodiousness — The property of being melodious.
- membranaceous — Resembling or having properties of a membrane.
- meningococcus — a reniform or spherical bacterium, Neisseria meningitidis, that causes cerebrospinal meningitis.
- meritoriously — deserving praise, reward, esteem, etc.; praiseworthy: to receive a gift for meritorious service.
- merrythoughts — Plural form of merrythought.
- mescal button — one of the dried, buttonlike tops of a mescal of the genus Lophophora, used as a hallucinogen, especially by certain Indians of Mexico and the southwestern U.S. during religious ceremonies; peyote.
- mesocephalous — Alternative form of mesocephalic.
- metafunctions — Plural form of metafunction.
- metalliferous — containing or yielding metal.
- microaneurysm — An extremely small aneurysm.