10-letter words containing r, e, o, p
- hilltopper — the top or summit of a hill.
- hippocrene — a spring on Mount Helicon sacred to the Muses and regarded as a source of poetic inspiration.
- hippodrome — an arena or structure for equestrian and other spectacles.
- hipsterdom — The state of being a hipster.
- holophrase — a word functioning as a phrase or sentence, as the imperative Go!
- home scrap — scrap steel reprocessed in the steel mill in which it was produced.
- homeomorph — any of the crystalline minerals characterized by a particular kind of homeomorphism.
- homopteran — homopterous.
- homosphere — The lower part of the atmosphere, up to about sixty miles, in which there is no great change in its composition.
- hop clover — a trefoil, Trifolium campestre, having withered, yellow flowers that resemble the strobiles of a hop.
- hop garden — a field of hops
- hop-picker — a person employed or a machine used to pick hops
- hopper car — a freight car, usually open at the top and containing one or more hoppers so that bulk cargo can be quickly discharged through its bottom.
- horoscopes — Plural form of horoscope.
- horse-whip — a whip for controlling horses.
- horsepower — a foot-pound-second unit of power, equivalent to 550 foot-pounds per second, or 745.7 watts.
- horsewhips — Plural form of horsewhip.
- hospitaler — a member of the religious and military order (Knights Hospitalers or Knights of St. John of Jerusalem) originating about the time of the first Crusade (1096–99) and taking its name from a hospital at Jerusalem.
- hot pepper — any of variously shaped pungent peppers of the genus Capsicum, containing large amounts of capsaicin and usually having thin walls.
- houseproud — Alternative form of house-proud.
- hoverports — Plural form of hoverport.
- hydrophane — a partly translucent variety of opal, which becomes more translucent or transparent when immersed in water.
- hydrophile — (chemistry) Any hydrophilic substance.
- hydrophobe — a hydrophobic substance.
- hydrophone — a device for locating sources of sound under water, as for detecting submarines by the noise of their engines.
- hydrophyte — a plant that grows in water or very moist ground; an aquatic plant.
- hydroplane — a seaplane.
- hydropower — hydroelectric power.
- hydroscope — an optical device for viewing objects below the surface of water.
- hydrospace — the regions beneath the surface of the oceans and seas.
- hydrotrope — (chemistry) A compound that solubilizes hydrophobic compounds in aqueous solutions.
- hyetograph — a map or chart showing the average rainfall for the localities represented.
- hygrophobe — a plant that grows best with little or no moisture
- hygrophyte — a plant that thrives in wet or very moist ground.
- hygroscope — an instrument that indicates the approximate humidity of the air.
- hypaethron — a part of a building or court which is open to the sky
- hyperbaton — the use, especially for emphasis, of a word order other than the expected or usual one, as in “Bird thou never wert.”.
- hyperbolas — Plural form of hyperbola.
- hyperboles — Plural form of hyperbole.
- hyperbolic — having the nature of hyperbole; exaggerated.
- hyperchaos — (mathematics) A form of chaotic behaviour with at least two positive Lyapunov exponents.
- hyperfocal — relating to the distance beyond which a lens can be focused to produce satisfactory image quality
- hypergolic — (especially of rocket-fuel propellant constituents) igniting spontaneously upon contact with a complementary substance.
- hyperlocal — relating to or focused on a very small geographical community, as a neighborhood: hyperlocal news websites; hyperlocal advertising.
- hypernovae — Plural form of hypernova.
- hyperoodon — (zoology) A whale in the genus Hyperoodon of the order Cetacea, comprising both species of bottlenose whale.
- hyperosmia — an abnormally acute sense of smell.
- hyperosmic — Of, pertaining to, or affected by hyperosmia.
- hyperoxide — superoxide.
- hyperploid — having a chromosome number that is greater than but not a multiple of the diploid number.