16-letter words containing o, m
- manganese nodule — a small irregular concretion found on deep ocean floors having high concentrations of certain metals, esp manganese
- manganese violet — a moderate to strong purple color.
- mangrove snapper — gray snapper.
- manhood suffrage — the right of adult male citizens to vote
- manic depression — bipolar disorder.
- many-plumed moth — a moth of the species, Alucita hexadactyla
- maremma sheepdog — a large strongly-built sheepdog of a breed with a long, slightly wavy, white coat
- margin of safety — therapeutic index.
- marginal costing — a method of cost accounting and decision making used for internal reporting in which only marginal costs are charged to cost units and fixed costs are treated as a lump sum
- marie antoinette — Marie [muh-ree;; French ma-ree] /məˈri;; French maˈri/ (Show IPA), 1755–93, queen of France 1774–93: wife of Louis XVI.
- marine barometer — a barometer for use on shipboard, especially one mounted on gimbals so as to minimize the effects of the motion of the vessel.
- marine biologist — scientist who studies sea life
- maritime command — the naval branch of the Canadian armed forces
- marmalade orange — a bitter variety of orange suitable for making marmalade
- marriage customs — the acts that are traditionally done in connection with a marriage
- marriage portion — dowry.
- marseille prolog — (language) One of the two main dialects of Prolog, the other being Edinburgh Prolog. The difference is largely syntax. The original Marseille Interpreter (1973) was written in Fortran.
- marsh cinquefoil — a variety of cinquefoil, Potentilla palustris, that grows in marshy areas
- marsupialization — (surgery) The surgical technique of cutting a slit into a cyst and suturing its edges to form a continuous surface from the exterior to the interior of the cyst, allowing it to drain freely.
- mason-dixon line — the boundary between Pennsylvania and Maryland, partly surveyed by Charles Mason and Jeremiah Dixon between 1763 and 1767, popularly considered before the end of slavery as a line of demarcation between free and slave states.
- mass destruction — devastation on a large scale
- mass observation — the study of the social habits of people through observation, interviews, etc
- matron of honour — a married woman serving as chief attendant to a bride
- matter of course — an event or result that is natural or inevitable
- matter of record — a fact or statement that appears on the record of a court and that can be proved or established by producing such record.
- matter-of-course — occurring or proceeding in or as if in the logical, natural, or customary course of things; expected or inevitable.
- matter-of-factly — adhering strictly to fact; not imaginative; prosaic; dry; commonplace: a matter-of-fact account of the political rally.
- matthew of paris — c1200–59, English chronicler.
- mauchly, john w. — John Mauchly
- maximilian armor — full plate armor of the early 16th century, representing a combination of Italian and German styles and characterized by extensive use of fluting for lightness and strength.
- measured daywork — a system of wage payment, usually determined by work-study techniques, whereby the wage of an employee is fixed on the understanding that a specific level of work performance will be maintained
- mechanochemistry — the field of chemistry that deals with the direct conversion of chemical into mechanical energy.
- mechanoreception — The action of a mechanoreceptor.
- mechanoreceptive — Responsive to mechanical stimuli such as sound and touch.
- mechanoreceptors — Plural form of mechanoreceptor.
- medal of bravery — a Canadian award for courage
- medal of freedom — a former name of the Presidential Medal of Freedom.
- media atropatene — an ancient region in NW Iran, formerly a part of Media.
- medieval cornish — the Cornish language of the Middle Ages, usually dated from the 14th century to 1600.
- medieval history — the branch of history dealing with the Middle Ages
- medulloblastomas — Plural form of medulloblastoma.
- meet one's maker — to die
- megacorporations — Plural form of megacorporation.
- megakaryoblastic — (cytology) Of or pertaining to a megakaryoblast.
- megalomaniacally — In a megalomaniacal manner.
- megaphanerophyte — any tree with a height over 30 metres
- megasporogenesis — the formation and development of megaspores.
- melodic interval — an intervening period of time: an interval of 50 years.
- melodramatically — In a melodramatic manner.
- memoria technica — a method or device for assisting the memory