17-letter words containing h, d, s
- hammer and sickle — the emblem of the Soviet Union, adopted in 1923 and consisting of an insignia of a hammer with its handle across the blade of a sickle and a star above.
- handicap register — a list of the disabled people in its area that a local authority had a duty to compile under the Chronically Sick and Disabled Persons Act 1970
- hard-shelled clam — quahog
- hard-shelled crab — a crab, esp. an edible sea crab, before it has shed its hard shell
- hardware register — (hardware, system administration) (Or "hardware log") A list of all hardware, both internal and external, that is attached to a particular computer.
- haroun-al-raschid — Harun al-Rashid.
- have no words for — to be incapable of describing
- heart of darkness — a short novel (1902) by Joseph Conrad.
- herbaceous border — A herbaceous border is a flower bed containing a mixture of plants that flower every year.
- heritage industry — an industry that manages the historical sites, buildings, and museums in a particular place, with the aim of encouraging tourism
- heterochlamydeous — (of a plant) having a perianth consisting of distinct sepals and petals
- hexacosanoic acid — cerotic acid.
- high-density disk — a computer storage disk capable of holding more than 720 kilobytes of data
- high-heeled shoes — shoes having high, rather than flat, heels
- historical method — the process of establishing general facts and principles through attention to chronology and to the evolution or historical course of what is being studied.
- hit the headlines — be prominently featured in the news
- hodgkin's disease — a type of cancer characterized by progressive chronic inflammation and enlargement of the lymph nodes of the neck, armpit, groin, and mesentery, by enlargement of the spleen and occasionally of the liver and the kidneys, and by lymphoid infiltration along the blood vessels.
- hold all the aces — If you say that someone holds all the aces, you mean that they have all the advantages in a contest or situation.
- hold one's breath — If you say that someone is holding their breath, you mean that they are waiting anxiously or excitedly for something to happen.
- hold one's end up — the last part or extremity, lengthwise, of anything that is longer than it is wide or broad: the end of a street; the end of a rope.
- hold one's ground — the solid surface of the earth; firm or dry land: to fall to the ground.
- hold one's horses — a large, solid-hoofed, herbivorous quadruped, Equus caballus, domesticated since prehistoric times, bred in a number of varieties, and used for carrying or pulling loads, for riding, and for racing.
- hold one's tongue — Anatomy. the usually movable organ in the floor of the mouth in humans and most vertebrates, functioning in eating, in tasting, and, in humans, in speaking.
- hold sb to ransom — If you say that someone is holding you to ransom in British English, or holding you for ransom in American English, you mean that they are using their power to try to force you to do something which you do not want to do.
- holistic medicine — incorporating the concept of holism, or the idea that the whole is more than merely the sum of its parts, in theory or practice: holistic psychology.
- hollandaise sauce — a sauce of egg yolks, butter, lemon juice, and seasonings.
- homeland security — national defence
- homogentisic acid — an intermediate compound in the metabolism of tyrosine and of phenylalanine, found in excess in the blood and urine of persons affected with alkaptonuria.
- hornblende schist — a variety of schist containing needles of hornblende that lie in parallel planes.
- horseradish sauce — a piquant sauce made from horseradish root, vinegar, etc, and traditionally eaten in Britain with roast beef
- hot-and-sour soup — a spicy Chinese soup made with pork, chicken, beans, vinegar, etc., served hot
- hottentot's bread — elephant's-foot.
- houndstooth check — a pattern of broken checks, used in woven material for jackets, shirts, etc.
- household ammonia — diluted ammonia, often having a small quantity of detergent, used in the home for cleaning.
- household cavalry — (in Britain) cavalry units forming part of the ceremonial guard of the monarch.
- household effects — domestic belongings
- household rubbish — the unwanted things and waste material produced in the running of a household, such as used paper, empty tins and bottles, and waste food
- how the land lies — the prevailing conditions or state of affairs
- hurler's syndrome — a medical condition characterized by physical deformity and mental deficiency
- hydrogasification — a high-temperature, high-pressure process for producing liquid or gaseous fuels from fine particles of coal and hydrogen gas
- hydrogen sulphide — Chemistry
- hydrotherapeutics — hydrotherapy.
- hypochlorous acid — a weak, unstable acid, HOCl, existing only in solution and in the form of its salts, used as a bleaching agent and disinfectant.
- hypsilophodontids — Plural form of hypsilophodontid.
- icosidodecahedron — A semiregular polyhedron with twelve faces that are regular pentagons and twenty that are equilateral triangles.
- icositetrahedrons — Plural form of icositetrahedron.
- in double harness — in a harness for two animals pulling the same carriage, plow, etc.
- 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.