15-letter words containing si
- fourth position — a position in which the feet are at right angles to the direction of the body, the toes pointing out, with one foot forward and the other foot back.
- free university — a school run informally by and for college students, organized to offer courses and approaches not usually offered in a college curriculum.
- french dressing — salad dressing prepared chiefly from oil, vinegar, and seasonings.
- frisian carving — geometrical incised carving.
- frisian islands — a chain of islands in the North Sea along the coasts of the Netherlands, Germany, and Denmark: separated from the mainland by shallows
- fusospirillosis — (medicine) alternative name of acute necrotizing ulcerative gingivitis.
- gaia hypothesis — a model of the earth as a self-regulating organism, advanced as an alternative to a mechanistic model.
- general paresis — a syphilitic brain disorder characterized by chronic inflammation and degeneration of cerebral tissue resulting in mental and physical deterioration.
- georg simon ohm — Georg Simon [gey-awrk zee-mawn] /geɪˈɔrk ˈzi mɔn/ (Show IPA), 1787–1854, German physicist.
- gluconeogenesis — glucose formation in animals from a noncarbohydrate source, as from proteins or fats.
- glyconeogenesis — gluconeogenesis.
- gnu mirror site — GNU archive site
- gossipmongering — The behaviour of a gossipmonger; the spreading of salacious rumours.
- great recession — the protracted worldwide economic recession following the financial crisis of 2007–08
- greenfield site — a site located in a rural area which has not previously been built on
- hair extensions — synthetic or human hair attached to the hair on someone's head to give the appearance of longer hair
- haversian canal — a microscopic channel in bone, through which a blood vessel runs.
- hazard analysis — risk assessment
- heaviside layer — E layer.
- heliacal rising — rising of a celestial object at approximately the same time as the rising of the sun
- hemochromatosis — a rare metabolic disorder characterized by a bronzed skin, cirrhosis, and severe diabetes, caused by the deposit in tissue, especially of the liver and pancreas, of hemosiderin and other pigments containing iron.
- high commission — A High Commission is the office where a High Commissioner and his or her staff work, or the group of officials who work there.
- hillbilly music — folk music combined with elements of popular music in which the banjo, fiddle, and guitar are principal instruments: a type of music that originated in mountain regions of the southern U.S.
- histophysiology — the branch of physiology dealing with tissues.
- hoosier cabinet — a tall kitchen cabinet mass-produced during the early part of the 20th century, usually of oak, featuring an enameled work surface, storage bins, a flour sifter, etc.
- house physician — a house officer working in a medical as opposed to a surgical discipline
- housing benefit — In Britain, housing benefit is money that the government gives to people with no income or very low incomes to pay for part or all of their rent.
- housing project — a publicly built and operated housing development, usually intended for low- or moderate-income tenants, senior citizens, etc.
- hyperaggressive — characterized by or tending toward unprovoked offensives, attacks, invasions, or the like; militantly forward or menacing: aggressive acts against a neighboring country.
- hyperanakinesia — abnormally active mechanical movement, especially of the stomach or intestine.
- hyperbolic sine — one of a group of functions of an angle expressed as a relationship between the distances of a point on a hyperbola to the origin and to the coordinate axes; sinh
- hyperextensible — Capable of being stretched and extended.
- hypergalactosis — an abnormally large secretion of milk.
- hyperparasitism — an organism that is parasitic on or in another parasite.
- hyperresponsive — responding especially readily and sympathetically to appeals, efforts, influences, etc.: a responsive government.
- hypersensitized — Simple past tense and past participle of hypersensitize.
- hypochondriasis — Also, hypochondriasis [hahy-poh-kuh n-drahy-uh-sis] /ˌhaɪ poʊ kənˈdraɪ ə sɪs/ (Show IPA). Psychiatry. an excessive preoccupation with one's health, usually focusing on some particular symptom, as cardiac or gastric problems.
- hyposensitivity — low or diminished sensitivity to stimulation.
- hypovitaminosis — Insufficiency of one or more essential vitamins in the body.
- hysteresis loop — a closed curve showing the variation of the magnetic flux density of a ferromagnetic material with the external magnetic field producing it, when this field is changed through a complete cycle
- hysteresis loss — the loss of energy by conversion to heat in a system exhibiting hysteresis.
- ibero-maurusian — of or relating to an Epipaleolithic culture of northwestern Africa that preceded the Capsian culture and was once erroneously thought to have originated in southwestern Europe; characterized by the use of backed bladelets, occupation of the maritime plain, and the hunting of the Barbary sheep.
- identity crisis — a period or episode of psychological distress, often occurring in adolescence but sometimes in adulthood, when a person seeks a clearer sense of self and an acceptable role in society.
- immunodiagnosis — serodiagnosis.
- immunodiffusion — any of various analytical techniques that involve antigen and antibody solutions diffusing toward each other in a gel until antibody binds specifically to antigen to form a precipitate.
- impact adhesive — a glue designed to give adhesion when two coated surfaces are pressed together
- implausibleness — The quality of being implausible.
- impossibilities — Plural form of impossibility.
- impressibleness — The state of being impressible; impressibility.
- impressionistic — a person who follows or adheres to the theories, methods, and practices of impressionism, especially in the fields of painting, music, or literature.