9-letter words containing o, s, t, i, n, a
- simionato — Giulietta [joo-lyet-tah] /dʒuˈlyɛt tɑ/ (Show IPA), 1910–2010, Italian mezzo-soprano.
- sinuation — a winding; sinuosity.
- siphonate — (of molluscs) having a syphon
- sitomania — abnormal craving for food.
- situation — manner of being situated; location or position with reference to environment: The situation of the house allowed for a beautiful view.
- sociation — an association
- solvation — a compound formed by the interaction of a solvent and a solute.
- sonicator — a device for treatment with ultrasound
- sortation — the process or result of sorting things, especially computationally or mechanically.
- spiration — the act of breathing
- staminode — a sterile or abortive stamen.
- staminody — the metamorphosis of any of various flower organs, as a sepal or a petal, into a stamen.
- staminoid — like a stamen
- stanchion — an upright bar, beam, post, or support, as in a window, stall, ship, etc.
- stand oil — a thick oil made by heating linseed oil to temperatures of 600°F and higher, used chiefly as a medium in paints.
- stasidion — a choir stall in an Orthodox church.
- stational — a place or position in which a person or thing is normally located.
- stationed — a place or position in which a person or thing is normally located.
- stationer — a person who sells the materials used in writing, as paper, pens, pencils, and ink.
- stenopaic — (of an optic device) having a narrow opening devised to improve eyesight by limiting obscurations
- stinkaroo — something markedly inferior in quality: a stinkaroo of a motion picture.
- stratonic — of or relating to an army
- striation — striated condition or appearance.
- strontian — strontianite.
- subaction — an act of subduing
- sublation — to deny or contradict; negate.
- suctorian — a suctorial animal.
- sulcation — having long, narrow grooves or channels, as plant stems, or being furrowed or cleft, as hoofs.
- sulfation — Chemistry. a salt or ester of sulfuric acid.
- summation — the act or process of summing.
- supinator — a muscle used in supination.
- swingboat — a piece of fairground equipment consisting of a boat-shaped carriage for swinging in
- tenacious — holding fast; characterized by keeping a firm hold (often followed by of): a tenacious grip on my arm; tenacious of old habits.
- tensional — the act of stretching or straining.
- testation — witness or evidence
- thomasina — a female given name.
- toamasina — a port in E Madagascar, on the Indian Ocean: the country's chief commercial centre. Pop: 198 000 (2005 est)
- tocantins — a river in E Brazil, flowing N to the Pará River. 1700 miles (2735 km) long.
- tommasini — Vicenzo [vee-chen-dzaw] /viˈtʃɛn dzɔ/ (Show IPA), 1880–1950, Italian composer.
- tonsillar — a prominent oval mass of lymphoid tissue on each side of the throat.
- tonsorial — of or relating to a barber or barbering: the tonsorial shop.
- torsional — the act of twisting.
- toscanini — Arturo [ahr-too r-oh;; Italian ahr-too-raw] /ɑrˈtʊər oʊ;; Italian ɑrˈtu rɔ/ (Show IPA), 1867–1957, Italian orchestra conductor, in the U.S. after 1928.
- transonic — close to the speed of propagation of sound; moving at 700–780 miles per hour (1127–1255 km/h) at sea level.
- trasimeno — a lake in central Italy, in Umbria near Perugia: Romans defeated by Hannibal 217 b.c. About 50 sq. mi. (130 sq. km).
- triclosan — a drug used to treat skin infections
- trisagion — an ancient hymn
- tsakonian — a modern Greek dialect spoken on the east coast of the Peloponnesus, descended from the Laconian dialect of ancient Sparta.
- vasotocin — a chemical similar to oxytocin found in birds, fish, and some amphibians
- vasotonic — pertaining to or regulating the tone of the blood vessels.