17-letter words containing h, i, s, t, d, n
- how the land lies — the prevailing conditions or state of affairs
- hydrogasification — a high-temperature, high-pressure process for producing liquid or gaseous fuels from fine particles of coal and hydrogen gas
- hypsilophodontids — Plural form of hypsilophodontid.
- icositetrahedrons — Plural form of icositetrahedron.
- in the wilderness — If politicians or other well-known people spend time in the wilderness, they are not in an influential position or very active in their profession for that time.
- indian paintbrush — any of several semiparasitic plants belonging to the genus Castilleja, of the figwort family, as C. linariaefolia, of the western U.S.: the state flower of Wyoming.
- indistinguishable — not distinguishable.
- indistinguishably — In an indistinguishable manner; so that separate components or differences cannot be discerned.
- industrial school — a school for teaching one or more branches of industry; trade or vocational school.
- integrated school — (in New Zealand) a private or church school that has joined the state school system
- interdental brush — a small brush that is used to clean between the teeth
- intermediate host — the host in which a parasite undergoes development but does not reach sexual maturity.
- island of the sun — Sicily: the island where Helius kept his oxen.
- lanthanide series — the series of rare-earth elements of atomic numbers 57 through 71 (lanthanum through lutetium).
- light dawns on sb — If light dawns on you, you begin to understand something after a period of not being able to understand it.
- liquidity cushion — a reserve fund of assets held by a company or person
- lymphadenopathies — Plural form of lymphadenopathy.
- maintained school — a school financially supported by the state
- martha's vineyard — an island off SE Massachusetts: summer resort. About 100 sq. mi. (259 sq. km).
- montessori method — a system for teaching young children, in which the fundamental aim is self-motivated education by the children themselves, as they are encouraged to move freely through individualized instruction and physical exercises, accompanied by special emphasis on the training of the senses and the early development of reading and writing skills.
- nightshade family — the plant family Solanaceae, characterized by herbaceous plants, trees, shrubs, and vines having alternate, simple or pinnate leaves, conspicuous flowers, and fruit in the form of a berry or capsule, and including belladonna, eggplant, nightshade, peppers of the genus Capsicum, petunia, potato, tobacco, and tomato.
- northern rhodesia — former name of Zambia.
- northern studfish — See under studfish.
- old south arabian — a group of four closely related Semitic languages, having a writing system and used from about the eighth to the fifth centuries b.c. in the southern part of Arabia.
- old spanish trail — an overland route from Santa Fe, N. Mex., to Los Angeles, Calif., first marked out in 1776 by Spanish explorers and missionaries.
- on the debit side — the debit side of a situation is the aspect of it which is less positive, pleasant, or useful than its other aspects
- on the heavy side — tending to be too heavy
- perth and kinross — a council area of N central Scotland, corresponding mainly to the historical counties of Perthshire and Kinross-shire: part of Tayside Region from 1975 until 1996: chiefly mountainous, with agriculture, tourism, and forestry. Administrative centre: Perth. Pop: 135 990 (2003 est). Area: 5321 sq km (2019 sq miles)
- photodissociation — the dissociation or breakdown of a chemical compound by radiant energy.
- pseudo-humanistic — a person having a strong interest in or concern for human welfare, values, and dignity.
- psychodiagnostics — the study and evaluation of character or personality in terms of behavioral and anatomical traits, as gesture, posture and physiognomy.
- psychoeducational — designating or of psychological methods, as intelligence tests, used in evaluating learning ability
- rhode island bent — a European pasture grass, Agrostis tenuis, naturalized in North America, having red flower clusters.
- rhodope mountains — a mountain range in SE Europe, in the Balkan Peninsula extending along the border between Bulgaria and Greece. Highest peak: Golyam Perelik (Bulgaria), 2191 m (7188 ft)
- scientific method — a method of research in which a problem is identified, relevant data are gathered, a hypothesis is formulated from these data, and the hypothesis is empirically tested.
- sheltered housing — accommodation designed esp for the elderly or infirm consisting of a group of individual premises, often with some shared facilities and a caretaker
- shipping industry — the industry concerned with transporting freight, esp by ship
- shooting incident — an incident involving guns
- shouting distance — hailing distance.
- sinbad the sailor — a merchant in The Arabian Nights who makes seven adventurous voyages
- single-sheet feed — a mechanism for feeding or taking single sheets of paper into a printer
- sir arthur harden — Sir Arthur, 1865–1940, English biochemist: Nobel Prize 1929.
- sixth commandment — “Thou shalt not kill”: sixth of the Ten Commandments.
- south farmingdale — a town on central Long Island, in SE New York.
- south frigid zone — the part of the earth's surface between the Antarctic Circle and the South Pole.
- south sea islands — the islands in the S Pacific that constitute Oceania
- southern rhodesia — a former name (until 1964) of Zimbabwe (def 1).
- southern studfish — See under studfish.
- speech impediment — speaking disorder
- spondylolisthesis — the forward displacement of a vertebra.