12-letter words containing t, o, h, r, a, s
- thomas hardy — Godfrey Harold, 1877–1947, English mathematician.
- thoracoscope — an instrument used for examining the pleural cavity
- thoracostomy — the construction of an artificial opening through the chest wall, usually for the drainage of fluid or the release of an abnormal accumulation of air.
- thrash about — flail, throw oneself around
- through bass — figured bass.
- tracheoscopy — examination of the interior of the trachea, as with a laryngoscope.
- tracheostomy — the construction of an artificial opening through the neck into the trachea, usually for the relief of difficulty in breathing.
- trachomatous — a chronic, contagious infection of the conjunctiva and cornea, characterized by the formation of granulations and scarring and caused by the bacterium Chlamydia trachomatis.
- trade school — a high school giving instruction chiefly in the skilled trades.
- trapshooting — the sport of shooting at clay pigeons hurled into the air from a trap.
- triadelphous — (of stamens) united by the filaments into three sets or bundles.
- tricephalous — with three heads
- triphosphate — a salt derived from triphosphoric acid.
- trojan horse — Classical Mythology. a gigantic hollow wooden horse, left by the Greeks upon their pretended abandonment of the siege of Troy. The Trojans took it into Troy and Greek soldiers concealed in the horse opened the gates to the Greek army at night and conquered the city.
- trophallaxis — (among social insects) the exchange of nutriments or other secretions between members of a colony.
- typographist — a person skilled in the art of typography
- unhistorical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- urolithiasis — a diseased condition marked by the formation of stones in the urinary tract.
- variety show — vaudeville performance
- walkthroughs — Plural form of walkthrough.
- warning shot — gunshot fired into the air
- weathercocks — Plural form of weathercock.
- what is more — moreover, in addition
- whitethroats — Plural form of whitethroat.
- yachtsperson — A yachtsman or yachtswoman.