18-letter words containing s, t, i, g
- stratigraphic trap — A stratigraphic trap is a rock formation that contains hydrocarbons and is sealed by other rock formations.
- strong derived set — the set of all strong accumulation points of a given set.
- strong interaction — the interaction between gluons and between gluons and quarks that is responsible for the strong force.
- sugarloaf mountain — a mountain in SE Brazil in Rio de Janeiro, at the entrance to Guanabara Bay. 1280 feet (390 meters).
- super giant slalom — a slalom race in which the course is longer and has more widely spaced gates than in a giant slalom.
- super middleweight — a boxer weighing up to 168 pounds (75.6 kg), between middleweight and light heavyweight.
- superstring theory — any supersymmetric string theory in which each type of elementary particle is treated as a vibration of a single fundamental string (superstring) at a particular frequency.
- supporting actress — an actress playing a supporting role
- supraorbital ridge — browridge.
- sustaining program — a radio or television program without a commercial sponsor.
- swarm intelligence — the collective behaviour of a group of animals, esp social insects such as ants, bees, and termites, that are each following very basic rules
- swedish gymnastics — a system of passive and active exercising of muscles and joints
- sweptwing aircraft — an aircraft which has wings that are swept (usually) backwards
- sympathetic string — a thin wire string, as in various obsolete musical instruments, designed to vibrate sympathetically with the bowed or plucked strings to reinforce the sound.
- synthetic geometry — elementary geometry, as distinct from analytic geometry.
- system-programming — a program, as an operating system, compiler, or utility program, that controls some aspect of the operation of a computer (opposed to application program).
- teaching assistant — a graduate student in a college or university who is the recipient of a teaching fellowship. Abbreviation: TA.
- technical sergeant — a noncommissioned officer ranking below a master sergeant and above a staff sergeant.
- the damage is done — If you say 'the damage is done', you mean that it is too late now to prevent the harmful effects of something that has already happened.
- the intelligentsia — the educated or intellectual people in a society or community
- the magnolia state — a nickname referring to Mississippi
- the middle passage — the journey across the Atlantic Ocean from the W coast of Africa to the Caribbean: the longest part of the journey of the slave ships sailing to the Caribbean or the Americas
- the nether regions — the genitals
- there's no telling — You use there's no telling to introduce a statement when you want to say that it is impossible to know what will happen in a situation.
- tighten one's belt — a band of flexible material, as leather or cord, for encircling the waist.
- to get wind of sth — If you get wind of something, you hear about it, especially when someone else did not want you to know about it.
- to gird your loins — If you gird your loins, you prepare to do something difficult or dangerous.
- to scrape a living — If you say that someone scrapes a living or scratches a living, you mean that they manage to earn enough to live on, but it is very difficult. In American English, you say they scrape out a living or scratch out a living.
- to spill your guts — if someone spills their guts, they tell you everything about something secret or private
- to stop at nothing — If you say that someone will stop at nothing to get something, you are emphasizing that they are willing to do things that are extreme, wrong, or dangerous in order to get it.
- torsion-free group — a group in which every element other than the identity has infinite order.
- translation agency — an organization that provide people to translate speech or writing into a different language
- transmogrification — to change in appearance or form, especially strangely or grotesquely; transform.
- transporter bridge — a bridge for carrying passengers and vehicles by means of a platform suspended from a trolley.
- traveling salesman — a male representative of a business firm who travels in an assigned territory soliciting orders for a company's products or services.
- treaty obligations — obligations or duties that must be carried out by a party as according to a treaty they have entered into
- triangle of forces — a triangle whose sides represent the magnitudes and directions of three forces whose resultant is zero and which are therefore in equilibrium
- tune someone grief — to annoy or harass someone
- ultrasonic testing — the scanning of material with an ultrasonic beam, during which reflections from faults in the material can be detected: a powerful nondestructive test method
- ultrasonic welding — the use of high-energy vibration of ultrasonic frequency to produce a weld between two components which are held in close contact
- under the aegis of — guided or protected by
- under-registration — the act of registering.
- universal negative — a proposition of the form “No S is P.” Symbol: E, e.
- university heights — a city in NE Ohio, near Cleveland.
- urban homesteading — homesteading (def 2).
- veterinary surgeon — Chiefly British. a veterinarian.
- virginia snakeroot — any of various plants whose roots have been regarded as a remedy for snakebites, as the herb Aristolochia serpentaria (Virginia snakeroot) having a medicinal rhizome and rootlets, and the white-flowered Polygala senega (Seneca snakeroot) having a medicinal root.
- visiting professor — a professor from another institution invited to teach at a university or college for a limited period, usually for a semester or one academic year.
- vosges (mountains) — mountain range in NE France, west of the Rhine: highest peak, c. 4,700 ft (1,433 m)
- voter registration — the requirement of citizens to become registered in order to vote