15-letter words containing d, h, o
- heteroscedastic — (of several distributions) having different variances
- hexahydrothymol — menthol.
- high definition — a system for screen display of images that are sharper and more detailed than normal, having many more than the standard number of scanning lines per frame: Most TV shows are available in high definition. Abbreviation: HD. See also high-definition television.
- high priesthood — the condition or office of a high priest.
- high-definition — High-definition television or technology is a digital system that gives a much clearer picture than traditional television systems.
- hobbledehoyhood — The period of time of being a hobbledehoy; awkward adolescence.
- hog-nosed skunk — Also called badger skunk, rooter skunk. a large, naked-muzzled skunk, Conepatus mesoleucus, common in the southwestern U.S. and Mexico, having a black coat with one broad white stripe down the back and tail.
- hold one's hand — to stop or postpone a planned action or punishment
- hold one's nose — the part of the face or facial region in humans and certain animals that contains the nostrils and the organs of smell and functions as the usual passageway for air in respiration: in humans it is a prominence in the center of the face formed of bone and cartilage, serving also to modify or modulate the voice.
- holding company — a company that controls other companies through stock ownership but that usually does not engage directly in their productive operations (distinguished from parent company).
- holding furnace — a small furnace for holding molten metal produced in a larger melting furnace at a desired temperature for casting.
- holding paddock — a paddock in which cattle or sheep are kept temporarily, as before shearing, etc
- holding pattern — a traffic pattern for aircraft at a specified location (holding point) where they are ordered to remain until permitted to land or proceed.
- hole-and-corner — secretive; clandestine; furtive: The political situation was full of hole-and-corner intrigue.
- holiday clothes — the clothes worn and bought for travelling on holiday, such as swimwear, skiwear, or clothes for hot or cold weather, etc
- holiday cottage — a cottage used for accommodation for a family, couple, etc, on holiday
- holiday feeling — the positive feeling people experience while on holiday and during holiday periods such as the Christmas period
- holiday traffic — increased road traffic during holiday periods and public holidays
- holiday village — a park with villas where holidaymakers stay and which has a central area with a shop, entertainment, etc
- holyhead island — former name of Holy Island (def 2).
- homing guidance — a method of missile guidance in which internal equipment enables it to steer itself onto the target, as by sensing the target's heat radiation
- homochlamydeous — (of a plant) having a perianth in which the sepals and petals are fused together and indistinguishable
- hook and ladder — a fire engine, usually a tractor-trailer, fitted with long, extensible ladders and other equipment.
- hook of holland — a cape and the harbor it forms in the SW Netherlands.
- horned cucumber — a tropical African plant, Cucumis metuliferus, having fruit with spiky, orange skin and jellylike pulp that tastes like cucumbers.
- horned oak gall — a small, round tumor, formed around wasp eggs laid in the branches of a pin oak tree, that disrupts the flow of nutrients to the tree, with consequent defoliation and death.
- horned screamer — a screamer, Anhima cornuta, of tropical South America, having a long, slender hornlike process projecting from the forehead.
- horner's method — a technique, involving successive substitutions, for approximating the real roots of an equation with real coefficients.
- horse latitudes — the latitudes near 30°N or 30°S at sea, characterized by baffling winds, calms, and high barometric pressure
- horse-and-buggy — of or relating to the last few generations preceding the invention of the automobile: vivid recollections of horse-and-buggy days.
- hospital doctor — a hospital doctor works in a hospital, rather than as a general practitioner, in the army, etc
- hot-dip coating — the process of coating sheets of iron or steel with molten zinc.
- house detective — an employee of a department store, hotel, etc., employed to prevent thefts, violations of regulations, or other forms of misconduct on the part of patrons.
- household goods — kitchenware and other utensils for use in the home
- household linen — items made of cloth, such as tablecloths, sheets, and pillowcases, that are used in the home
- how do you mean — If you say 'How do you mean?' to someone, you are asking them to explain or give more details of what they have just said.
- hughes syndrome — a condition of the autoimmune system caused by antibodies reacting against phospholipids, leading to thrombosis
- human condition — mortality
- humidifications — Plural form of humidification.
- hundred flowers — the 1957 political campaign in the People's Republic of China to encourage greater freedom of intellectual expression, initiated by Mao Zedong under the slogan “Let a hundred flowers bloom, let a hundred schools of thought contend.”.
- hunting leopard — the cheetah.
- huntingdonshire — a former county in E England, now part of Cambridgeshire.
- hurdle champion — a hurdler who has defeated all others in a competition
- hyaluronic acid — a mucopolysaccharide serving as a viscous medium in the tissues of the body and as a lubricant in joints.
- hybrid antibody — a synthetic antibody that is able to combine with two different antigens
- hybrid computer — a computer system containing both analog and digital hardware.
- hydraulic motor — a motor that converts the kinetic or potential energy of a fluid into mechanical energy.
- hydrobiological — of or relating to hydrobiology
- hydrodynamicist — a specialist in hydrodynamics.
- hydrofracturing — a process in which fractures in rocks below the earth's surface are opened and widened by injecting chemicals and liquids at high pressure: used especially to extract natural gas or oil.