19-letter words containing y, o
- heavy goods vehicle — a large road vehicle for carrying goods
- heavy-water reactor — a nuclear reactor that uses heavy water as moderator
- henry david thoreau — Henry David, 1817–62, U.S. naturalist and author.
- henry the navigator — Prince, 1394–1460, prince of Portugal.
- hepatoportal system — a vascular arrangement in vertebrates through which blood is transported into the liver from capillaries of the stomach, spleen, duodenum, pancreas, and intestines.
- heptachlorobiphenyl — (organic compound) Either of twenty-four isomers of the polychlorinated biphenyl containing seven chlorine atoms.
- hester lynch piozzi — Hester Lynch (Hester Lynch Piozzi) 1741–1821, Welsh writer and friend of Samuel Johnson.
- histopathologically — In a histopathological manner.
- historiographically — In a historiographical manner; by means of a historiography.
- holiday entitlement — the number of days of paid holiday in a year that a worker is entitled to take
- holy innocents' day — December 28, a day of religious observance commemorating the slaughter of the children of Bethlehem by Herod's order.
- homme moyen sensuel — an average man, with average tastes and appetites
- horizontal mobility — movement from one position to another within the same social level, as changing jobs without altering occupational status, or moving between social groups having the same social status.
- humanist technology — (philosophy) Technology centered around the interests, needs, and well-being of humans.
- hydrochlorothiazide — a crystalline, water-insoluble powder, C 7 H 8 ClN 3 O 4 S 2 , used as a diuretic and in the treatment of hypertension.
- hydroelectric power — electricity generated by water
- hydropneumatization — utilization of air pressure in the housing of a water turbine to keep the level of water that has been used from rising to interfere with the rotor blades.
- hydrostatic balance — a balance for finding the weight of an object submerged in water in order to determine the upthrust on it and thus determine its relative density
- hydroxybenzoic acid — Hydroxybenzoic acid is the active ingredient in a number of drugs, for example, aspirin. Hydroxybenzoic acid is also used as a preservative.
- hydroxybutyric acid — ketone body.
- hydroxydaunorubicin — Doxorubicin.
- hyper-nationalistic — a person devoted to nationalism.
- hyperbolic cosecant — a hyperbolic function that is the reciprocal of hyperbolic sine
- hyperbolic function — a function of an angle expressed as a relationship between the distances from a point on a hyperbola to the origin and to the coordinate axes, as hyperbolic sine or hyperbolic cosine: often expressed as combinations of exponential functions.
- hyperbolic geometry — the branch of non-Euclidean geometry that replaces the parallel postulate of Euclidean geometry with the postulate that two distinct lines may be drawn parallel to a given line through a point not on the given line.
- hypercholesteraemia — (medicine) An abnormally high level of cholesterol in the blood.
- hyperfocal distance — the distance, at a given f number, between a camera lens and the nearest point (hyperfocal point) having satisfactory definition when focused at infinity.
- hyperparathyroidism — overactivity of the parathyroid gland, characterized by softening of the bones, with consequent pain, tenderness, and a tendency to spontaneous fractures, and by muscular weakness and abdominal cramps.
- hyperphosphorylated — Simple past tense and past participle of hyperphosphorylate.
- hyperresponsiveness — An abnormally increased responsiveness, especially that due to hypersensitivity or hyperreactivity.
- hypocholesterolemia — an abnormally low amount of cholesterol in the blood.
- hypocholesterolemic — (pathology) Of, pertaining to, or having hypocholesterolemia.
- hypolipoproteinemia — An abnormally low level of lipoprotein in the blood.
- hypomixolydian mode — a plagal church mode represented on the white keys of a keyboard instrument by an ascending scale from D to D, with the final on G.
- hypophosphoric acid — a tetrabasic acid, H 4 P 2 O 6 , produced by the slow oxidation of phosphorous in moist air.
- hysterosalpingogram — An X-ray image taken during hysterosalpingography.
- immunocytochemistry — the detection of chemical components of cells by means of antibodies coupled to substances that can be made visible.
- impressionistically — In an impressionistic manner.
- in one's mind's eye — pictured within the mind; imagined or remembered vividly
- in the line of duty — If you do something or if it happens to you in the line of duty, you do it or it happens as part of your regular work or as a result of it.
- incomprehensibility — impossible to understand or comprehend; unintelligible.
- incontrovertibility — The state or characteristic of being incontrovertible, of not being debatable; incontestability.
- inferiority complex — Psychiatry. intense feeling of inferiority, producing a personality characterized either by extreme reticence or, as a result of overcompensation, by extreme aggressiveness.
- inflationary spiral — Geometry. a plane curve generated by a point moving around a fixed point while constantly receding from or approaching it.
- information highway — information superhighway
- inorganic chemistry — the branch of chemistry dealing with inorganic compounds.
- instant photography — photography using an instant camera.
- intangible property — intellectual property, rights ownership
- intentional fallacy — (in literary criticism) an assertion that the intended meaning of the author is not the only or most important meaning; a fallacy involving an assessment of a literary work based on the author's intended meaning rather than on actual response to the work.
- interferometrically — By means of interferometry.