21-letter words containing s, m, o
- jump all over someone — to spring clear of the ground or other support by a sudden muscular effort; leap: to jump into the air; to jump out a window.
- keep one's mouth shut — to keep a secret
- keep someone guessing — If someone keeps you guessing, they do not tell you what you want to know.
- keto-enol tautomerism — tautomerism in which the tautomers are an enol and a keto form. The change occurs by transfer of a hydrogen atom within the molecule
- kleine-levin syndrome — prolonged episodes of excessive sleepiness often accompanied by overeating, hallucinations, and electroencephalogram changes, usually beginning in adolescence.
- knights of st columba — an international, semi-secret fraternal and charitable order for Catholic laymen, which originated in New Haven, Connecticut in 1882 (the Knights of Columbus)
- knock someone for six — to upset or overwhelm someone completely; stun
- know someone by sight — If you know someone by sight, you can recognize them when you see them, although you have never met them and talked to them.
- lady of the camellias — French La Dame aux Camélias. a novel (1848) and play (1852) by Alexandre Dumas fils.
- law of thermodynamics — any of three principles variously stated in equivalent forms, being the principle that the change of energy of a thermodynamic system is equal to the heat transferred minus the work done (first law of thermodynamics) the principle that no cyclic process is possible in which heat is absorbed from a reservoir at a single temperature and converted completely into mechanical work (second law of thermodynamics) and the principle that it is impossible to reduce the temperature of a system to absolute zero in a finite number of operations (third law of thermodynamics)
- lay at someone's door — a movable, usually solid, barrier for opening and closing an entranceway, cupboard, cabinet, or the like, commonly turning on hinges or sliding in grooves.
- least common multiple — lowest common multiple.
- lie at someone's door — a movable, usually solid, barrier for opening and closing an entranceway, cupboard, cabinet, or the like, commonly turning on hinges or sliding in grooves.
- linear transformation — linear map
- locally compact space — a topological space in which each point has a neighborhood that is compact.
- loch ness monster bug — (humour) (Or "Bugfoot") A bug which cannot be reproduced or has only been sighted by one person. Named after the mythical creature claimed to inhabit Loch Ness in Scotland.
- long-term liabilities — Long-term liabilities are debts that a company does not have to pay back for a year or more.
- lost-and-found column — a column in a newspaper that carries advertisements from people who have lost or found things
- lull before the storm — If you describe a situation as the lull before the storm, you mean that although it is calm now, there is going to be trouble in the future.
- luminous flux density — luminous flux per unit of cross-sectional area.
- macintosh common lisp — (language) (MCL) Common Lisp for the Apple Macintosh. Guillaume Cartier, of the Mathematics Department at UQAM, Canada, has written some libraries.
- macintosh file system — (file system) A file on the Macintosh consists of two parts, called forks. The "data fork" contains the data which would normally be stored in the file on other operating systems. The "resource fork" contains a collection of arbitrary attribute/value pairs, including program segments, icon bitmaps, and parametric values. Yet more information regarding Macintosh files is stored by the Finder in a hidden file, called the "Desktop Database". Because of the complications in storing different parts of a Macintosh file in non-Macintosh file systems that only handle consecutive data in one part, it is common to only send the Data fork or to convert the Macintosh file into some other format before transferring it.
- made of sterner stuff — If you say that someone is made of sterner stuff, you mean that they have a strong personality and are capable of overcoming difficulties and problems.
- magnetofluid dynamics — magnetohydrodynamics.
- magnetoplasmadynamics — magnetohydrodynamics.
- maidenhair spleenwort — an evergreen fern, Asplenium trichomanes, abundant in woody areas of the North Temperate Zone, having thickly clustered fronds.
- main-topsail schooner — a two-masted or three-masted schooner having square topsails on the foremast and mainmast: a jackass brig or jackass bark.
- majority shareholding — a holding of more than half a company's shares
- make (both) ends meet — to manage to keep one's expenses within one's income
- make a pig of oneself — If you say that someone is making a pig of themselves, you are criticizing them for eating a very large amount at one meal.
- make one's blood boil — the fluid that circulates in the principal vascular system of human beings and other vertebrates, in humans consisting of plasma in which the red blood cells, white blood cells, and platelets are suspended.
- make one's gorge rise — a narrow cleft with steep, rocky walls, especially one through which a stream runs.
- make one's peace with — the normal, nonwarring condition of a nation, group of nations, or the world.
- make up for lost time — compensate for past inaction
- make yourself at home — settle in
- management consultant — A management consultant is someone whose job is to advise companies on the most efficient ways to run their business.
- manufacturing process — chain of production
- marquise de pompadour — Marquise de (Jeanne Antoinette Poisson Le Normant d'Étioles) 1721–64, mistress of Louis XV of France.
- mask read-only memory — (storage) (MROM) A kind of ROM in which the memory contents are determined by one of the masks used to manufacture the integrated circuit. MROM can give high storage density (bits per millimeter squared) making it a cheap solution for high volume applications.
- massage someone's ego — to boost someone's sense of self-esteem by flattery
- mauna kea observatory — an astronomical observatory on Mauna Kea, Hawaii, situated at an altitude of 13,600 feet (4145 meters).
- mayor of casterbridge — a novel (1886) by Thomas Hardy.
- mean square deviation — variance (def 3).
- mechanical solidarity — social cohesiveness that is based on shared activities, beliefs, and experiences and is characteristic of simple traditional societies.
- mechanical suspension — the act of suspending.
- medical social worker — a person who works in a hospital and is responsible for offering counselling to patients and their families and ensuring that discharged patients will receive appropriate care in the community
- medium access control — Media Access Control
- megaloblastic anaemia — any anaemia, esp pernicious anaemia, characterized by the presence of megaloblasts in the blood or bone marrow
- megaspore mother cell — a diploid cell in plants that undergoes meiosis to create four haploid megaspores.
- meter-kilogram-second — of or relating to the system of units in which the meter, kilogram, and second are the principal units of length, mass, and time. Abbreviation: mks, MKS.