13-letter words containing s, p, o, i
- supervirtuoso — a highly accomplished virtuoso
- supplantation — to take the place of (another), as through force, scheming, strategy, or the like.
- support price — the price at which the government will purchase commodities, especially farm produce, in order to maintain a certain price level.
- suppositional — the act of supposing.
- supralittoral — of or relating to the biogeographic region of a shore of a lake, sea, or ocean permanently above water but made damp by spray from waves or by capillarity of the substrate.
- supranational — outside or beyond the authority of one national government, as a project or policy that is planned and controlled by a group of nations.
- suprarational — not understandable by reason alone; beyond rational comprehension.
- surreptitious — obtained, done, made, etc., by stealth; secret or unauthorized; clandestine: a surreptitious glance.
- swimming pool — a tank or large artificial basin, as of concrete, for filling with water for swimming.
- sympatholytic — opposing the effects of stimulation of the sympathetic nervous system.
- symphysiotomy — a surgical procedure to facilitate labour
- sympiesometer — a barometer using a gas, rather than a vacuum, to measure pressure
- synaposematic — relating to synaposematism
- synecphonesis — the fusion of two syllables into one
- synophthalmia — cyclopia.
- syphilization — the act of syphilizing
- syphilophobia — the excessive fear of syphilis
- tachistoscope — an apparatus for use in exposing visual stimuli, as pictures, letters, or words, for an extremely brief period, used chiefly to assess visual perception or to increase reading speed.
- taphrogenesis — the process of forming rifts, resulting in regional faulting and subsidence
- tax inspector — a government official whose job is to make sure that people and companies are paying the right amount of tax
- telescopiform — having body parts which resemble a telescope in that the retract within one another
- temporariness — lasting, existing, serving, or effective for a time only; not permanent: a temporary need; a temporary job.
- terminal post — A terminal post is the terminal on a battery to which the battery lead is attached.
- terpsichorean — pertaining to dancing.
- the antipodes — Australia and New Zealand
- the potteries — a region of W central England, in Staffordshire, in which the china and earthenware industries are concentrated
- the provinces — those parts of a country lying outside the capital and other large cities and regarded as outside the mainstream of sophisticated culture
- the spotlight — the focus of attention
- theanthropism — the doctrine of the union of the divine and human natures, especially the manifestation of God as man in Christ.
- thermoplastic — soft and pliable when heated, as some plastics, without any change of the inherent properties.
- thermospheric — pertaining to the thermosphere
- thermotropism — oriented growth of an organism in response to heat.
- thespian lion — a lion that attacked the flocks of Amphitryon and was killed by Hercules.
- thigmotropism — oriented growth of an organism in response to mechanical contact, as a plant tendril coiling around a string support.
- thiophosphate — a salt or ester of thiophosphoric acid.
- thiosulphuric — of or relating to thiosulphuric acid or anything derived from it
- timbrophilist — a person who loves stamps or who collects stamps
- time exposure — a long exposure in which the shutter is opened and closed by hand or by a mechanism other than the automatic mechanism of the shutter.
- tip one's hat — to take off, raise, or touch one's hat in salutation
- to be precise — You say 'to be precise' to indicate that you are giving more detailed or accurate information than you have just given.
- to go apeshit — to become crazy, enraged, or out of control
- topochemistry — the study of reactions that only occur at specific regions in a system
- topoisomerase — any of a class of enzymes that control the coiling of DNA molecules
- torsion group — a group in which every element has finite order.
- total eclipse — an eclipse in which the surface of the eclipsed body is completely obscured.
- total impulse — a measure of the maximum momentum that a given reaction engine and fuel supply can impart to a vehicle.
- township line — Surveying. one of two parallel lines running east and west that define the north and south borders of a township. Compare range line, township (def 2).
- toxicophagous — poison-eating
- toxoplasmosis — infection with the parasite Toxoplasma gondii, transmitted to humans by consumption of insufficiently cooked meat containing the parasite or by contact with contaminated cats or their feces: the illness produced is usually mild, but in pregnant women may damage the fetus.
- train spotter — a person who collects the numbers of railway locomotives