18-letter words containing p, y, i
- aerial photography — Aerial photography is the process of taking photographs of an area from above, for example from an airplane or mast.
- algebraic topology — the branch of mathematics that deals with the application of algebraic methods to topology, especially the study of homology and homotopy.
- alpha-hydroxy acid — a type of organic acid, commonly used in skin-care preparations, that has a hydroxyl group attached to the carbon atom next to the carbon atom carrying the carboxyl group
- anaphylactic shock — a severe, sometimes fatal, reaction to a substance to which a person has an extreme sensitivity, often involving respiratory difficulty and circulation failure
- anterior pituitary — a small, somewhat cherry-shaped double structure attached by a stalk to the base of the brain and constituting the master endocrine gland affecting all hormonal functions in the body, consisting of an anterior region ((anterior pituitary) or (adenohypophysis)) that develops embryonically from the roof of the mouth and that secretes growth hormone, LH, FSH, ACTH, TSH, and MSH, a posterior region ((posterior pituitary) or (neurohypophysis)) that develops from the back of the forebrain and that secretes the hormones vasopressin and oxytocin, and an intermediate part (pars intermedia) derived from the anterior region but joined to the posterior region, that secretes the hormone MSH in lower vertebrates.
- anthropocentricity — the state or quality of being anthropocentric.
- anti-masonic party — a former political party (1826–35) that opposed Freemasonry in civil affairs.
- antimony pentoxide — a white or yellowish, water-insoluble powder, Sb 2 O 5 , used chiefly in the synthesis of antimonates.
- aperture synthesis — an array of radio telescopes used in radio astronomy to simulate a single large-aperture telescope. Some such instruments use movable dishes while others use fixed dishes
- applied psychology — psychology that is put to practical use
- arachibutyrophobia — Fear of peanut butter sticking to the roof of one's mouth.
- army of occupation — an army that goes into a defeated country to enforce peace terms, keep order, etc.
- associated company — a company which is largely controlled by its parent company because the latter owns anything up to 50% of the shares
- asymptotic freedom — a property of the force between quarks, according to quantum chromodynamics, such that they behave almost like free particles when they are close together within a hadron.
- at your fingertips — If you say that something is at your fingertips, you approve of the fact that you can reach it easily or that it is easily available to you.
- auditory phonetics — the branch of phonetics concerned with the perception of speech sounds by humans
- autobiographically — In a autobiographical manner.
- be in good company — If you say that someone is in good company, you mean that they should not be ashamed of a mistake or opinion, because some important or respected people have made the same mistake or have the same opinion.
- beauty competition — a competition in which the participants, usually women, are judged on their attractiveness, with a prize, and often a title, awarded to the winner
- beta-naphthylamine — a white to reddish, crystalline, water-soluble, extremely toxic solid, C 10 H 9 N, used chiefly in the manufacture of azo dyes.
- biological therapy — biotherapy
- burkitt's lymphoma — a cancer characterized by tumors containing lymphoid cells, occurring esp. in children, in the jaw, eyes, and internal organs: it is associated with the Epstein-Barr virus
- byte-code compiler — (programming, tool) A compiler which outputs a program in some kind of byte-code. Compare: byte-code interpreter.
- chemical pregnancy — a pregnancy that is confirmed by a pregnancy test but not by clinical signs and terminates before clinical signs can be observed.
- child psychologist — a psychologist who specializes in treating children
- chronostratigraphy — The branch of geology concerned with establishing the absolute ages of strata.
- claustrophobically — In a claustrophobic way.
- clinical pathology — the branch of pathology dealing with the study of disease and disease processes by means of chemical, microscopic, and serologic examinations.
- community hospital — (in the US) a local hospital
- community policing — Community policing is a system in which policemen work only in one particular area of the community, so that everyone knows them.
- community property — the joint ownership of the property of a husband and wife
- complexity measure — (algorithm) A quantity describing the complexity of a computation.
- conservative party — The Conservative Party is the main right-of-centre party in Britain.
- constituency party — a branch of a political party operating within a constituency
- corporate identity — business brand
- corpus christi bay — a bay in S Texas, at the mouth of the Nueces River.
- counter-hypothesis — a proposition, or set of propositions, set forth as an explanation for the occurrence of some specified group of phenomena, either asserted merely as a provisional conjecture to guide investigation (working hypothesis) or accepted as highly probable in the light of established facts.
- cranial osteopathy — osteopathy that focuses on the cranium and the spine
- creeping paralysis — any slow process that causes a system, government, etc, to stop working efficiently
- cross-disciplinary — linking two or more fields of study
- crystal microphone — a microphone that uses a piezoelectric crystal to convert sound energy into electrical energy
- currency principle — the principle that banks should be permitted to issue notes only against bullion or coin.
- cyclic pitch lever — a lever in a helicopter to change the angle of attack of individual rotor blades, causing the helicopter to move forwards, backwards, or sideways
- daisywheel printer — (printer) A kind of impact printer where the characters are arranged on the ends of the spokes of a wheel (resembling the petals on a daisy). The wheel (usually made of plastic) is rotated to select the character to print and then an electrically operated hammer mechanism bends the selected spoke forward slightly, sandwiching an ink ribbon between the character and the paper, as in a typewriter. One advantage of this arrangement over that of a typewriter is that different wheels may be inserted to produce different typefaces.
- decachlorobiphenyl — (organic compound) The fully chlorinated polychlorinated biphenyl containing ten chlorine atoms.
- deficiency payment — a payment made to a commodity producer that represents the difference between the market price and the guaranteed price
- depository library — a library designated by law to receive without charge all or a selection of the official publications of a government.
- developing country — a nonindustrialized poor country that is seeking to develop its resources by industrialization
- dialytic telescope — a type of achromatic telescope with a second correcting lens
- didot point system — a Continental system of measurement for type, based on a unit of 0.0148 inches (0.3759 mm).
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