18-letter words containing i, n, h, a
- noninterchangeable — That cannot be interchanged with another.
- nonpharmacological — Not pharmacological.
- north polar region — the region of land and water surrounding the North Pole.
- northeast corridor — the long, narrow strip of land between Boston, New York City, and Washington, D.C., containing many adjacent urban areas.
- norwegian elkhound — one of a breed of dogs having a short, compact body, short, pointed ears, and a thick, gray coat, raised originally in Norway for hunting elk and other game.
- not a hope in hell — If you say that someone has not got a hope in hell of doing something, you are emphasizing that they will not be able to do it.
- not a pretty sight — If you say that someone or something is not a pretty sight, you mean that it is not pleasant to look at.
- not that i know of — You say 'Not that I know of' when someone has asked you whether or not something is true and you think the answer is 'no' but you cannot be sure because you do not know all the facts.
- oath of allegiance — pledge to one's nation
- octachlorobiphenyl — (organic compound) Either of twelve isomers of the polychlorinated biphenyl containing eight chlorine atoms.
- oil of catechumens — holy oil used in baptism, the ordination of a cleric, the coronation of a sovereign, or in the consecration of a church.
- on that/this score — You can use on that score or on this score to refer to something that has just been mentioned, especially an area of difficulty or concern.
- on the danger list — critically ill in hospital
- one's native heath — the place of one's birth or childhood
- optical brightener — an additive that dyes and brightens fabric or paper
- organization chart — a diagrammatic representation showing how departments or divisions in an organization, as a large corporation, are related to one another along lines of authority.
- oriental cockroach — a dark-brown cockroach, Blatta orientalis, thought to have originated in Asia but now nearly cosmopolitan in distribution.
- oriental shorthair — any of a breed of domestic cat, similar to the Siamese but with greenish eyes and often a coat of a solid color
- orthotungstic acid — an oxyacid acid of tungsten. Formula: H2WO4
- over and done with — If you say that something is over and done with, you mean that it is completely finished and you do not have to think about it any more.
- overnight telegram — a type of domestic telegram sent at a reduced rate with a minimum charge for 10 words or less and accepted until midnight for delivery the following day.
- packet switch node — (PSN) A dedicated computer whose purpose is to accept, route and forward packets in a packet-switched network.
- paint the town red — a substance composed of solid coloring matter suspended in a liquid medium and applied as a protective or decorative coating to various surfaces, or to canvas or other materials in producing a work of art.
- pairs championship — an event in a sport such as tennis or darts open to pairs of competitors
- paper handkerchief — a handkerchief made from tissue paper
- parachute regiment — an airborne regiment of an army
- paraglyph printing — the printing of the positive and negative of a radiograph superimposed in slight misalignment to give the effect of a relief.
- parathyroid glands — any of several small oval glands usually lying near or embedded in the thyroid gland.
- passive euthanasia — a form of euthanasia in which medical treatment that will keep a dying patient alive for a time is withdrawn
- pathologic anatomy — the branch of pathology dealing with the morphologic changes in tissues.
- pennsylvania dutch — the descendants of 17th- and 18th-century settlers in Pennsylvania from southwest Germany and Switzerland.
- peppermint camphor — menthol.
- phanerocrystalline — (of a rock) having the principal constituents in the form of crystals visible to the naked eye.
- phantasmagorically — having a fantastic or deceptive appearance, as something in a dream or created by the imagination.
- phantom withdrawal — the unauthorized removal of funds from a bank account using an automated teller machine
- phase-shift keying — (communications) (PSK) A digital modulation scheme that conveys data by changing the phase of a carrier wave. The data can either determine the absolute phase relative to the unmodulated carrier or reference signal ("coherent phase-shift keying", CPSK) or the change in phase ("differential phase-shift keying", DPSK). The number of different phases used determines the amount of data that can be transmitted in each cycle. Each cycle can be considered to constitute one "symbol", e.g. with two possible phases, each cycle carries one bit. The more phases that are used, the less tollerant to noise the transmissions becomes. Alternatives to PSK are amplitude-shift keying (ASK) and frequency-shift keying (FSK).
- philharmonic pitch — a standard of pitch in which A above middle C is established at 440 vibrations per second.
- phoenician juniper — a type of juniper that is found in the Mediterranean region
- phosphatidylserine — any of a class of phospholipids occurring in biological membranes and fats
- photoisomerization — isomerization induced by light.
- photosensitization — to make (a material) photosensitive, as by the application of a photosensitive emulsion.
- phthalic anhydride — a white, crystalline, slightly water-soluble solid, C 8 H 4 O 3 , used chiefly in the manufacture of dyes, alkyd resins, and plasticizers.
- physical education — systematic instruction in sports, exercises, and hygiene given as part of a school or college program.
- physical inventory — To carry out a physical inventory is to count all the stock on hand.
- phytohemagglutinin — a lectin, obtained from the red kidney bean, that binds to the membranes of T cells and stimulates metabolic activity, cell division, etc.
- pitch-and-run shot — chip shot.
- plains grasshopper — a large, destructive short-horned grasshopper, Brachystola magna, of the western U.S., marked by pinkish hind wings.
- policeman's helmet — a Himalayan balsaminaceous plant, Impatiens glandulifera, with large purplish-pink flowers, introduced into Britain
- prerelease showing — a showing of a film before it goes on general release
- price on sb's head — If there is a price on someone 's head, an amount of money has been offered for the capture or killing of that person.