12-letter words containing n, y, o, r
- heteronymous — of, relating to, or characteristic of a heteronym.
- hexacarbonyl — (inorganic chemistry) Any compound having six carbonyl groups.
- hickory pine — bristlecone pine.
- high country — a mountainous area below the timberline; a forested mountain area.
- hill country — hilly area
- hire company — a company that hires things out to people
- holy trinity — Trinity (def 1).
- home and dry — If you say that someone is, in British English home and dry, or in American English home free, you mean that they have been successful or that they are certain to be successful.
- home country — the country a person comes from
- hominy grits — grits (def 1).
- honey badger — ratel.
- honeycreeper — any of several small, usually brightly colored birds, related to the tanagers and wood warblers, of tropical and semitropical America.
- honeymooners — Plural form of honeymooner.
- honor system — a system whereby the students at a school, the inmates in a prison, etc., are put on their honor to observe certain rules in order to minimize administrative supervision or to promote honesty.
- honorability — (American spelling) Alternative form of honourability.
- hooray henry — a young upper-class man, often with affectedly hearty voice and manners
- horizontally — at right angles to the vertical; parallel to level ground.
- horned poppy — any of several Eurasian papaveraceous plants of the genera Glaucium and Roemeria, having large brightly coloured flowers and long curved seed capsules
- horrendously — shockingly dreadful; horrible: a horrendous crime.
- horrifyingly — In a horrifying manner.
- host country — nation staging an international event
- hyannis port — a town in SE Massachusetts, on Nantucket Sound: summer resort.
- hydnocarpate — a salt or ester of hydnocarpic acid.
- hydrocarbons — any of a class of compounds containing only hydrogen and carbon, as an alkane, methane, CH 4 , an alkene, ethylene, C 2 H 4 , an alkyne, acetylene, C 2 H 2 , or an aromatic compound, benzene, C 6 H 6 .
- hydrocooling — the process or technique of arresting the ripening of fruits and vegetables after harvesting by immersion in ice water.
- hydrocyclone — A hydrocyclone is a vessel used for separating two liquids with different densities, by the circular movement of fluid.
- hydrodynamic — pertaining to forces in or motions of liquids.
- hydroforming — the production of high-octane aromatic compounds for motor fuels by catalytic reforming of naphthas in the presence of hydrogen.
- hydrogen ion — ionized hydrogen of the form H + , found in aqueous solutions of all acids.
- hydrogenated — to combine or treat with hydrogen, especially to add hydrogen to the molecule of (an unsaturated organic compound).
- hydrogenates — Third-person singular simple present indicative form of hydrogenate.
- hydrogenized — Simple past tense and past participle of hydrogenize.
- hydrokinesis — (science fiction): The psychic ability to manipulate or control water.
- hydrokinetic — pertaining to the motion of liquids.
- hydronautics — (nautical) The science of the design and construction of ships, their engines, and their instrumentation.
- hydronically — in a hydronic manner; in a manner relating to a heating system that uses water
- hydroplaning — a seaplane.
- hydroquinone — a white, crystalline compound, C 6 H 6 O 2 , formed by the reduction of quinone: used chiefly in photography and to inhibit autoxidation reactions.
- hydrosalpinx — A distally blocked Fallopian tube filled with serous or clear fluid.
- hydroxyl ion — hydroxide ion
- hydrozincite — a hydrous zinc carbonate, Zn 5 (CO 3) 2 (OH) 6 , an important ore of zinc in some localities.
- hymenopteran — hymenopterous.
- hymenopteron — hymenopteran.
- hyperfiction — nonlinear fiction created in electronic hypertext form and containing multiple plot developments, endings, etc., that can be evoked interactively.
- hyperflexion — Anatomy. the act of bending a limb. the position that a limb assumes when it is bent.
- hypersomniac — a tendency to sleep excessively.
- hypertension — Pathology. elevation of the blood pressure, especially the diastolic pressure. an arterial disease characterized by this condition.
- hypnotherapy — treatment of a symptom, disease, or addiction by means of hypnotism.
- hypochondria — Also, hypochondriasis [hahy-poh-kuh n-drahy-uh-sis] /ˌhaɪ poʊ kənˈdraɪ ə sɪs/ (Show IPA). Psychiatry. an excessive preoccupation with one's health, usually focusing on some particular symptom, as cardiac or gastric problems.
- hyponatremia — (medicine) An abnormally low concentration of sodium (or salt) in blood plasma.