7-letter words containing r, o, s
- treason — the offense of acting to overthrow one's government or to harm or kill its sovereign.
- treviso — a city in NE Italy.
- triones — the seven principal stars of the constellation Ursa Major
- trisome — a trisomic individual.
- trisomy — an abnormality characterized by the presence of an additional chromosome to the normal diploid number.
- troches — a small tablet or lozenge, usually a circular one, made of medicinal substance worked into a paste with sugar and mucilage or the like, and dried.
- trochus — (in ancient Greece and Rome) a hoop or wheel, as used in play or exercise
- troilus — a warrior son of Priam, mentioned by Homer and Vergil and later represented as the lover of Cressida.
- tropics — The tropics are the parts of the world that lie between two lines of latitude, the tropic of Cancer, 23½° north of the equator, and the tropic of Capricorn, 23½° south of the equator.
- tropism — an orientation of an organism to an external stimulus, as light, especially by growth rather than by movement.
- tropist — someone who uses tropes
- trotsky — Leon (Lev or Leib, Davidovich Bronstein) 1879–1940, Russian revolutionary and writer: minister of war 1918–25.
- trouser — of or relating to trousers or a trouser: trouser cuffs; a trouser seam.
- trustor — a person who creates a trust.
- tryouts — a trial or test to ascertain fitness for some purpose.
- tsardom — the domain of a czar.
- tsouris — trouble; woe.
- tussore — a tan silk from India. Compare Shantung (def 2a).
- twistor — a complex variable corresponding to the coordinates of a point in space and time
- uberous — fertile; abundant; fruitful
- umbrous — shady or shadowed
- uncross — to change from a crossed position, as the legs.
- unfrost — a degree or state of coldness sufficient to cause the freezing of water.
- unhorse — to cause to fall from a horse, as in battle; dislodge from the saddle: Sir Gawain unhorsed the strange knight.
- unroost — to remove from a perch
- unshorn — not shorn or cut
- unsober — not sober
- unvisor — to remove a visor from
- uprouse — to rouse up; arouse; awake.
- uranous — containing trivalent uranium.
- urinous — of, pertaining to, resembling, or having the odor or qualities of urine.
- urmston — a town in NW England, in Trafford unitary authority, Greater Manchester. Pop: 40 964 (2001)
- urosome — the abdomen of arthropods
- various — of different kinds, as two or more things; differing one from another: Various experiments have not proved his theory.
- vavasor — (in the feudal system) a vassal ranking just below a baron.
- vendors — a person or agency that sells.
- verbose — characterized by the use of many or too many words; wordy: a verbose report.
- verismo — the use of everyday life and actions in artistic works: introduced into opera in the early 1900s in reaction to contemporary conventions, which were seen as artificial and untruthful.
- version — a particular account of some matter, as from one person or source, contrasted with some other account: two different versions of the accident.
- vigours — active strength or force.
- virions — the infectious form of a virus as it exists outside the host cell, consisting of a nucleic acid core, a protein coat, and, in some species, an external envelope.
- virosis — infection with a virus.
- visitor — a person who visits, as for reasons of friendship, business, duty, travel, or the like.
- vorster — Balthazar Johannes, 1915–83, South African political leader: prime minister 1966–78; president 1978–79.
- votress — a votaress.
- vxworks — (operating system) A real-time multitasking operating system from Wind River Systems. Originally it used the VRTX kernel but this has been replaced by Wind River's own "Wind kernel 2.4". Before version 5.3 VxWorks included a software development environment but this is now called "Tornado".
- warison — a bugle call to assault.
- weirdos — Plural form of weirdo.
- whorish — having the character or characteristics of a whore; lewd; unchaste.
- windsor — (since 1917) a member of the present British royal family. Compare Saxe-Coburg-Gotha (def 1).