15-letter words containing s, t, o, m, y
- snowy mountains — a mountain range in SE Australia, part of the Australian Alps: famous hydroelectric scheme
- social mobility — mobility (def 2).
- sodium ethylate — a white, hygroscopic powder, C 2 H 5 ONa, that is decomposed by water into sodium hydroxide and alcohol: used chiefly in organic synthesis.
- somatic therapy — any of a group of treatments presumed to act on biological factors leading to mental illness.
- stand-up comedy — telling jokes to an audience
- statutory crime — a wrong punishable under a statute, rather than at common law.
- stereochemistry — the branch of chemistry that deals with the determination of the relative positions in space of the atoms or groups of atoms in a compound and with the effects of these positions on the properties of the compound.
- stony meteorite — any of various meteorites composed mainly of rock-forming silicates, especially olivine, plagioclase, and pyroxene, and classified as achondrites or chondrites.
- strephosymbolia — a condition of perceiving objects as their mirror image and, specifically, having difficulty in distinguishing letters in words
- symbol retailer — any member of a voluntary group of independent retailers, often using a common name or symbol, formed to obtain better prices from wholesalers or manufacturers in competition with supermarket chains
- symmetric group — the group of all permutations of a finite set.
- sympathetectomy — sympathectomy.
- sympathomimetic — mimicking stimulation of the sympathetic nervous system.
- symphony writer — a composer of an extended large-scale orchestral composition, usually with several movements, at least one of which is in sonata form
- symptomatically — pertaining to a symptom or symptoms.
- symptomological — relating to symptomology
- system operator — a person who maintains a computer system or network, especially one who operates a computer bulletin board.
- systematization — to arrange in or according to a system; reduce to a system; make systematic.
- tammany society — a benevolent society founded in 1789, which later became Tammany Hall, the central organization of the Democratic Party in New York county
- tantalus monkey — a long-tailed African monkey, Cercopithecus tantalus (or C. aethiops tantalus), of central African grasslands, having a long face framed by upswept whiskers.
- the smart money — If you say that the smart money is on a particular person or thing, you mean that people who know a lot about it think that this person will be successful, or this thing will happen.
- theory of games — game theory.
- thermochemistry — the branch of chemistry dealing with the relationship between chemical action and heat.
- thirtysomething — a person in her or his thirties
- trypanosomiasis — any infection caused by a trypanosome.
- tutorial system — a system of education, especially in some colleges, in which instruction is given personally by tutors, who also act as general advisers of a small group of students in their charge.
- tychonic system — a model for planetary motion devised by Tycho Brahe in which the earth is stationary and at the center of the planetary system, the sun and moon revolve around the earth, and the other planets revolve around the sun.
- ultramicroscopy — the use of the ultramicroscope.
- uncomplaisantly — in an uncomplaisant manner
- x window system — (operating system, graphics) A specification for device-independent windowing operations on bitmap display devices, developed initially by MIT's Project Athena and now a de facto standard supported by the X Consortium. X was named after an earlier window system called "W". It is a window system called "X", not a system called "X Windows". X uses a client-server protocol, the X protocol. The server is the computer or X terminal with the screen, keyboard, mouse and server program and the clients are application programs. Clients may run on the same computer as the server or on a different computer, communicating over Ethernet via TCP/IP protocols. This is confusing because X clients often run on what people usually think of as their server (e.g. a file server) but in X, it is the screen and keyboard etc. which is being "served out" to the applications. X is used on many Unix systems. It has also been described as over-sized, over-featured, over-engineered and incredibly over-complicated. X11R6 (version 11, release 6) was released in May 1994. See also Andrew project, PEX, VNC, XFree86.
- x-ray astronomy — the branch of astronomy that studies celestial objects by means of the x-rays emitted by them.
- yosemite valley — a glacial valley in Yosemite National Park in central California, in the Sierra Nevada Mountains. It has an altitude of about 1200 m (4000 ft), with sheer walls rising about another 1200 m (4000 ft).