13-letter words containing h, o, t, a, n, d
- orthopinakoid — a crystalline plane
- overhand knot — a simple knot of various uses that slips easily.
- painted horse — paint (def 6).
- patent holder — a person or company that holds a patent
- pentadelphous — (of a plant) having its stamens arranged in five groups; (of stamens) being arranged in five groups
- photodynamics — the science dealing with light and its effects on living organisms.
- pointy-headed — stupid; idiotic.
- prosthodontia — the branch of dentistry that deals with the restoration and maintenance of oral function by the replacement of missing teeth and other oral structures by artificial devices.
- quadrillionth — a cardinal number represented in the U.S. by 1 followed by 15 zeros, and in Great Britain by 1 followed by 24 zeros.
- shadowcasting — the enhancement of images by the casting of shadows
- shaft encoder — A shaft encoder is a sensor for measuring how fast a shaft rotates.
- sharp-tongued — characterized by or given to harshness, bitterness, or sarcasm in speech.
- shetland pony — one of a breed of small but sturdy, rough-coated ponies, raised originally in the Shetland Islands.
- shetland wool — the fine wool undercoat pulled by hand from Shetland sheep.
- show and tell — an activity for young children, especially in school, in which each participant produces an object of unusual interest and tells something about it.
- show-and-tell — an activity for young children, especially in school, in which each participant produces an object of unusual interest and tells something about it.
- south dakotan — a state in the N central United States: a part of the Midwest. 77,047 sq. mi. (199,550 sq. km). Capital: Pierre. Abbreviation: SD (for use with zip code), S. Dak.
- south holland — a province in the SW Netherlands. 1086 sq. mi. (2810 sq. km). Capital: The Hague.
- southern toad — a common toad, Bufo terrestris, of the southeastern U.S., having prominent knoblike crests on its head.
- spotted hyena — a long-legged carnivorous doglike mammal native to Africa and S Asia (Crocuta crocuta)
- standing chop — (in an axemen's competition) a chop with the log standing upright
- stone-hearted — stony-hearted.
- stony-hearted — hardhearted.
- synarthrodial — synarthrosis.
- the antipodes — Australia and New Zealand
- the decameron — title of collection of stories written in Italian in the early Renaissance by Boccaccio
- the iron lady — a nickname often used to describe female heads of government around the world, meaning 'strong-willed woman'. Most famously used of the Prime Minister of the United Kingdom (1979 to 1990) Margaret Thatcher
- the secondary — cornerbacks and safeties collectively
- the-decameron — a collection of 100 tales (1353) by Boccaccio.
- thenceforward — from that time or place onward.
- thermodynamic — of or relating to thermodynamics.
- thiabendazole — a drug used as an antifungal treatment and as an anthelmintic
- thomas edison — Thomas Alva [al-vuh] /ˈæl və/ (Show IPA), 1847–1931, U.S. inventor, especially of electrical devices.
- thousand days — the presidential administration of John F. Kennedy, which lasted 1037 days (January 20, 1961, to November 22, 1963).
- thousand oaks — a town in S California.
- thyroid gland — a two-lobed endocrine gland, located at the base of the neck that secretes two hormones that regulate the rates of metabolism, growth, and development.
- trapezohedron — Crystallography. a crystal form having all faces trapeziums.
- trimethadione — a synthetic, white, crystalline powder, C 6 H 9 NO 3 , used as an anticonvulsant to control petit mal epileptic seizures.
- unchlorinated — not chlorinated; not treated with chlorine
- weather-bound — delayed or shut in by bad weather.
- wood hyacinth — bluebell (def 2).
- wordsworthian — William, 1770–1850, English poet: poet laureate 1843–50.