18-letter words containing t, r, i, g

squirting cucumber — a Mediterranean plant, Ecballium elaterium, of the gourd family, whose ripened fruit forcibly ejects the seeds and juice.
standard of living — a grade or level of subsistence and comfort in everyday life enjoyed by a community, class, or individual: The well-educated generally have a high standard of living.
steering committee — a committee, especially of a deliberative or legislative body, charged with preparing the agenda of a session.
stirling's formula — a relation that approximates the value of n factorial (n!), expressed as .
strait of magellan — a strait between the mainland of S South America and Tierra del Fuego, linking the S Pacific with the S Atlantic. Length: 600 km (370 miles). Width: up to 32 km (20 miles)
strathclyde region — a former local government region in W Scotland: formed in 1975 from Glasgow, Renfrewshire, Lanarkshire, Buteshire, Dunbartonshire, and parts of Argyllshire, Ayrshire, and Stirlingshire; replaced in 1996 by the council areas of Glasgow, Renfrewshire, East Renfrewshire, Inverclyde, North Lanarkshire, South Lanarkshire, Argyll and Bute, East Dunbartonshire, West Dunbartonshire, North Ayrshire, South Ayrshire, and East Ayrshire
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
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).
technical sergeant — a noncommissioned officer ranking below a master sergeant and above a staff sergeant.
tender loving care — considerate and kindly care, as of someone who is ill, upset, etc
the electronic age — the electronic age began when electronic equipment, including computers came into use
the general public — the people in a society; people in general
the grand national — an annual steeplechase run at Aintree, Liverpool, since 1839
the major rogation — April 25, observed by Christians as a day of solemn supplication for the harvest and marked by processions, special prayers, and blessing of the crops
the nether regions — the genitals
theodore gericault — (Jean Louis André) Théodore [zhahn lwee ahn-drey tey-aw-dawr] /ʒɑ̃ lwi ɑ̃ˈdreɪ teɪ ɔˈdɔr/ (Show IPA), 1791–1824, French painter.
there you go again — Phrases such as there you go again are used to show annoyance at someone who is repeating something that has annoyed you in the past.
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.
thin on the ground — If people or things of a particular kind are thin on the ground, there are very few of them.
third man argument — (in the philosophy of Aristotle) the argument against the existence of Platonic Forms that since the Form of Man is itself a perfect man, a further form (the "third" man) would be required to explain this, and so ad infinitum
thought experiment — Physics. a demonstration or calculation that is based on the postulates of a theory, as relativity, and that demonstrates or clarifies the consequences of the postulates.
three-day eventing — participation in a three day equestrian competition consisting of dressage, cross-country jumping, and stadium jumping
tip of the iceberg — a large floating mass of ice, detached from a glacier and carried out to sea.
to a grinding halt — If you describe a bad situation as grinding, you mean it never gets better, changes, or ends.
to agree to differ — If two people who are arguing about something agree to disagree or agree to differ, they decide to stop arguing because neither of them is going to change their opinion.
to gird your loins — If you gird your loins, you prepare to do something difficult or dangerous.
to grit your teeth — If you grit your teeth, you make up your mind to carry on even if the situation is very difficult.
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-ing and fro-ing — If you say that there is a lot of to-ing and fro-ing, you mean that the same actions or movements or the same arguments are being repeated many times.
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.
travelling library — a mobile library in which a vehicle such as a van delivers books to be borrowed
treaty obligations — obligations or duties that must be carried out by a party as according to a treaty they have entered into

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