13-letter words containing o, r, t, h, s, i
- toothbrushing — the act or method of cleaning the teeth with a toothbrush.
- topochemistry — the study of reactions that only occur at specific regions in a system
- tortoiseshell — a horny substance of a mottled brown and yellow coloration, composing the laminae that cover the inner body plates of the carapace of certain tortoises or turtles, especially the hawksbill, used for making combs and ornamental articles, inlaying, etc.
- tracking shot — dolly shot.
- training shoe — Training shoes are the same as trainers.
- transthoracic — of or relating to the thorax.
- trichopterist — a student of, or expert in, trichopteran insects
- trichopterous — belonging or pertaining to the insect order Trichoptera, comprising the caddisflies.
- trichromatism — the quality or condition of being trichromatic.
- trinity house — an association that provides lighthouses, buoys, etc, around the British coast
- trophotropism — the response by an organism or cell to, or the movement of an organism or cell towards or away from, an external source of nutrition
- tropical fish — any of numerous small, usually brightly colored fishes, indigenous to the tropics, and often kept and bred in home aquariums.
- trout fishing — angling to catch trout
- turkish pound — the Turkish lira.
- turkish towel — a thick cotton towel with a long nap usually composed of uncut loops.
- uprighteously — in an upright or moral manner
- vasoinhibitor — an agent, as a drug, that inhibits the action of the vasomotor nerves.
- voting rights — the entitlement of an individual to vote
- west bromwich — a city in West Midlands, in central England, near Birmingham.
- whistleblower — a person who informs on another or makes public disclosure of corruption or wrongdoing.
- whithersoever — Wherever.
- whitlow grass — any of various plants of the genera Draba and Erophila, once thought to cure whitlows: family Brassicaceae (crucifers)
- whoremistress — a female owner or keeper of a brothel
- within reason — a basis or cause, as for some belief, action, fact, event, etc.: the reason for declaring war.
- without tears — presented so as to be easily assimilated
- wordsworthian — William, 1770–1850, English poet: poet laureate 1843–50.
- xanthochroism — a condition in certain animals, esp aquarium goldfish, in which all skin pigments other than yellow and orange disappear
- xiphiplastron — the fourth lateral plate of a turtle's plastron
- zinjanthropus — the genus to which Australopithecus boisei was formerly assigned.