15-letter words containing e, r, d, o
- heart tamponade — tamponade (def 2).
- hearth and home — domestic realm
- hedge your bets — play it safe, lessen a risk
- hemadynamometer — An instrument by which the pressure of the blood in the arteries, or veins, is measured by the height to which it will raise a column of mercury.
- heralds' office — the official heraldic authority of Scotland.
- heredo-familial — denoting a condition or disease that may be passed from generation to generation and to several members of one family
- hermaphroditism — the condition of being a hermaphrodite.
- hernando cortes — Hernando [er-nahn-daw] /ɛrˈnɑn dɔ/ (Show IPA), Hernán [er-nahn] /ɛrˈnɑn/ (Show IPA), 1485–1547, Spanish conqueror of Mexico.
- hernando cortez — Hernando [er-nahn-daw] /ɛrˈnɑn dɔ/ (Show IPA), Hernán [er-nahn] /ɛrˈnɑn/ (Show IPA), 1485–1547, Spanish conqueror of Mexico.
- herod agrippa i — 10 bc–44 ad, king of Judaea (41–44), grandson of Herod (the Great). A friend of Caligula and Claudius, he imprisoned Saint Peter and executed Saint James
- herod the great — ("the Great") 73?–4 b.c, king of Judea 37–4.
- heroin overdose — an excessive amount of the drug heroin, sufficient to cause illness or death
- heterodactylous — having the first and fourth toes directed backward, and the second and third forward, as in trogons.
- heteroscedastic — (of several distributions) having different variances
- hexahydrothymol — menthol.
- high priesthood — the condition or office of a high priest.
- holding furnace — a small furnace for holding molten metal produced in a larger melting furnace at a desired temperature for casting.
- 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.
- hook and ladder — a fire engine, usually a tractor-trailer, fitted with long, extensible ladders and other equipment.
- 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.
- hughes syndrome — a condition of the autoimmune system caused by antibodies reacting against phospholipids, leading to thrombosis
- 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
- hybrid computer — a computer system containing both analog and digital hardware.
- hydrogen iodide — a colorless gas, HI, having a suffocating odor: the anhydride of hydriodic acid.
- hydromechanical — Of or pertaining to hydromechanics.
- hydrometallurgy — the technique or process of extracting metals at ordinary temperatures by leaching ore with liquid solvents.
- hydroxybutyrate — (chemistry) any salt or ester of hydroxybutyric acid, but especially of gamma-hydroxybutyric acid.
- hydroxylapatite — Alternative spelling of hydroxyapatite.
- hype-carbonated — (of a product or service) overvalued as a result of relentless marketing and PR or intensive media exposure
- hyperdemocratic — pertaining to or of the nature of democracy or a democracy.
- hyperfastidious — extremely or excessively fastidious
- hyperlipoidemia — An abnormally high level of lipoids in the blood.
- hyperproduction — an increased or excessive production or output
- hyperthyroidism — overactivity of the thyroid gland.
- hypochondriases — Plural form of hypochondriasis.
- hypodorian mode — a plagal church mode represented on the white keys of a keyboard instrument by an ascending scale from A to A, with the final on D.
- i beg to differ — You say 'I beg to differ' when you are politely emphasizing that you disagree with someone.
- ichthyodorulite — a spiny plate located on the tail and back of some fish or similar vertebrates
- ichthyodorylite — a fossilised fish-spine
- identity theory — a form of materialism which holds mental states to be identical with certain states of the brain and so to have no separate existence, but regards this identity as contingent so that mentalistic and physicalistic language are not held to be synonymous
- ideographically — an ideogram.