15-letter words containing r, e, h, y
- hematoporphyria — porphyria.
- hematoporphyrin — a porphyrin made by treating haemoglobin with acid, used to treat cancer in photodynamic therapy
- hemicraniectomy — (surgery) The surgical removal of half of the cranium to enable brain surgery; hemicraniotomy.
- hemicryptophyte — any perennial plant that bears its overwintering buds at soil level, where they are often partly covered by surface debris
- henry cavendish — Henry, 1731–1810, English chemist and physicist.
- hermeneutically — of or relating to hermeneutics; interpretative; explanatory.
- heterocercality — the condition or state of having a heterocercal tail
- heterodactylous — having the first and fourth toes directed backward, and the second and third forward, as in trogons.
- heterogeneously — different in kind; unlike; incongruous.
- heterosexuality — sexual feeling or behavior directed toward a person or persons of the opposite sex.
- hexahydrothymol — menthol.
- hexylresorcinol — white or yellowish-white, needle-shaped crystals, C 12 H 18 O 2 , used chiefly as an antiseptic and for the expulsion of intestinal worms.
- hieroglyphology — the study of hieroglyphic writing.
- highway robbery — robbery committed on a highway against travelers, as by a highwayman.
- holocrystalline — (of igneous rocks) having only crystalline components and no glass
- honey tangerine — a citrus fruit with a deep-orange pulp, formed by crossing a tangerine and a sweet orange hybrid; Murcott
- honeycomb tripe — a part of the inner lining of the stomach of the steer, calf, hog, or sheep, resembling a honeycomb in appearance and considered a table delicacy.
- horse artillery — cavalry equipped with artillery
- horse-and-buggy — of or relating to the last few generations preceding the invention of the automobile: vivid recollections of horse-and-buggy days.
- host-host layer — transport layer
- hostess trolley — a trolley, usually wheeled, on which to keep food warm until the hostess is ready to serve it
- house of prayer — house of God.
- hughes syndrome — a condition of the autoimmune system caused by antibodies reacting against phospholipids, leading to thrombosis
- human geography — the study of the interaction between human beings and their environment in particular places and across spatial areas.
- humphrey bogart — Humphrey (DeForest) ("Bogie"or"Bogey") 1899–57, U.S. motion-picture actor.
- hybrid computer — a computer system containing both analog and digital hardware.
- hydraulic brake — a brake operated by fluid pressures in cylinders and connecting tubular lines.
- hydraulic press — a machine permitting a small force applied to a small piston to produce, through fluid pressure, a large force on a large piston.
- 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.
- hyetometrograph — an instrument used to record rainfall
- hype-carbonated — (of a product or service) overvalued as a result of relentless marketing and PR or intensive media exposure
- hyper-emotional — pertaining to or involving emotion or the emotions.
- hyper-energetic — possessing or exhibiting energy, especially in abundance; vigorous: an energetic leader.
- hyperactivation — (biology) A form of sperm motility associated with active beating of the flagellum.
- hyperactiveness — The state or quality of being hyperactive.
- hyperadrenalism — a glandular disorder caused by the overactivity of the adrenal glands and often resulting in obesity
- hyperaggressive — characterized by or tending toward unprovoked offensives, attacks, invasions, or the like; militantly forward or menacing: aggressive acts against a neighboring country.
- hyperanakinesia — abnormally active mechanical movement, especially of the stomach or intestine.
- hyperbolic sine — one of a group of functions of an angle expressed as a relationship between the distances of a point on a hyperbola to the origin and to the coordinate axes; sinh
- hypercalcinuria — Condition of high levels of calcium in the urine as caused by high levels of bone resorption seen in osteoporosis or hyperthyroidism.
- hypercatabolism — an abnormally high metabolic breakdown of a substance or tissue which leads to weight loss and physical deterioration
- hypercatalectic — (of a line of verse) containing an additional syllable after the last dipody or foot. Compare acatalectic (def 2), catalectic.
- hypercoagulable — related to excessive coagulation of the blood or blood clots
- hypercorrection — the substitution, in an inappropriate context, of a pronunciation, grammatical form, or usage thought by the speaker or writer to be appropriate, resulting usually from overgeneralizing in an effort to replace seemingly incorrect forms with correct ones, as the substitution of between you and I for between you and me, by analogy with you and I as the subject of a sentence.
- hypercritically — In a hypercritical manner.
- hyperdemocratic — pertaining to or of the nature of democracy or a democracy.