16-letter words containing y, n
- hexahydrobenzene — cyclohexane.
- hierophantically — In a hierophantic manner; in the manner of a hierophant.
- himalayan balsam — a tall flowering plant, Impatiens glandulifera, brought from Asia to Europe as a garden plant but now growing wild in Europe, especially on river banks. It is considered invasive and environmentally damaging.
- ho chi minh city — a seaport in S Vietnam.
- home-equity loan — a loan that uses equity in the borrower's home as collateral.
- honeymoon bridge — any of several varieties of bridge for two players.
- honeymoon couple — a newly-married couple who are on their honeymoon
- honeymoon period — a period of popularity enjoyed by a new government, or a new occupant of a post
- houphouet-boigny — Félix [French fey-leeks] /French feɪˈliks/ (Show IPA), 1905–1993, Ivory Coast political leader: president 1960–93.
- huckleberry finn — (The Adventures of Huckleberry Finn) a novel (1884) by Mark Twain.
- humanly possible — feasible, practical
- hundred-year-old — of one hundred years of age
- husayn ali mirza — 1817–92, Persian religious leader: founder of Bahāʾī.
- huygens eyepiece — an eyepiece consisting of two plano-convex lenses, the plane sides of which both face the eye.
- huyton-with-roby — an urban district in Merseyside, NW England, E of Liverpool.
- hyaloid membrane — the delicate, pellucid, and nearly structureless membrane enclosing the vitreous humor of the eye.
- hydnocarpic acid — an acid, C 16 H 28 O 2 , obtained from chaulmoogra oil, and used in the treatment of leprosy.
- hydrated alumina — a crystalline, water-insoluble powder, Al(OH) 3 or Al 2 O 3 ⋅3H 2 O, obtained chiefly from bauxite: used in the manufacture of glass, ceramics, and printing inks, in dyeing, and in medicine as an antacid and in the treatment of ulcers.
- hydration number — the number of molecules of water with which an ion can combine in an aqueous solution of given concentration.
- hydraulic cement — cement that can solidify under water.
- hydraulic mining — placer mining using a pressurized stream of water.
- hydrocyanic acid — a colorless, highly poisonous liquid, HCN, an aqueous solution of hydrogen cyanide.
- hydroferricyanic — (chemistry) Pertaining to, or containing, or obtained from, hydrogen, ferric iron, and cyanogen.
- hydroformylation — the addition of a hydrogen atom and the formyl group to a double bond of a hydrocarbon by reaction with a mixture of carbon monoxide and hydrogen in the presence of a catalyst.
- hydrogen bromide — a colorless gas, HBr, having a pungent odor: the anhydride of hydrobromic acid.
- hydrogen cyanide — a colorless poisonous gas, HCN, having a bitter almondlike odor: in aqueous solution it forms hydrocyanic acid.
- hydrogen sulfide — a colorless, flammable, water-soluble, cumulatively poisonous gas, H 2 S, having the odor of rotten eggs: used chiefly in the manufacture of chemicals, in metallurgy, and as a reagent in laboratory analysis.
- hydroxylammonium — (inorganic compound) The univalent NH3OH+ cation, derived from hydroxylamine.
- hyper-conformity — action in accord with prevailing social standards, attitudes, practices, etc.
- hyper-excitement — an excited state or condition.
- hyperandrogenism — (medicine) An abnormally high production of androgens.
- hyperconjugation — (organic chemistry) A weak form of conjugation in which single bonds interact with a conjugated system.
- hypercorrections — Plural form of hypercorrection.
- hypercorrectness — The state or condition of being hypercorrect.
- hyperinnervation — the act of innervating; state of being innervated.
- hyperinsulinemia — (medicine) The condition of having an excessively high level of insulin in the blood, usually due to excess production.
- hyperinsulinemic — Suffering from or characterized by hyperinsulinemia, an excessively high level of insulin in the blood.
- hyperintelligent — having good understanding or a high mental capacity; quick to comprehend, as persons or animals: an intelligent student.
- hypermasculinity — pertaining to or characteristic of a man or men: masculine attire.
- hyperoxygenation — to treat, combine, or enrich with oxygen: to oxygenate the blood.
- hyperreal number — any of the set of numbers formed by the addition of infinite numbers and infinitesimal numbers to the set of real numbers
- hypersensibility — capacity for sensation or feeling; responsiveness or susceptibility to sensory stimuli.
- hypersensitivity — excessively sensitive: to be hypersensitive to criticism.
- hypersexualizing — Present participle of hypersexualize.
- hyperstimulation — to rouse to action or effort, as by encouragement or pressure; spur on; incite: to stimulate his interest in mathematics.
- hyperventilating — Present participle of hyperventilate.
- hyperventilation — excessively rapid and deep breathing.
- hypervitaminosis — an abnormal condition caused by an excessive intake of vitamins.
- hypnagogic image — an image experienced by a person just before falling asleep, which often resembles a hallucination
- hypnagogic state — the drowsy period between wakefulness and sleep, during which fantasies and hallucinations often occur.