16-letter words containing x, p, o
- phagocytic index — the average number of bacteria ingested per phagocyte in an incubated mixture of bacteria, phagocytes, and blood serum: used in determining the opsonic index.
- phenoxybenzamine — an alpha blocker, C 1 8 H 2 2 ClNO, used to dilate vascular peripheral blood vessels in the treatment of Raynaud's disease and in pheochromocytoma.
- postfix notation — (language) (Or "Reverse Polish Notation", RPN) One of the possible orderings of functions and operands: in postfix notation the functions are preceded by all their operands. For example, what may normally be written as "1+2" becomes "1 2 +". Postfix notation is well suited for stack based architectures but modern compilers reduced this advantage considerably. The best-known language with postfix syntax is FORTH. Some Hewlett-Packard calculators use it, e.g. HP-25, HP-29C, HP-41C, HP-23SII. Compare: infix notation, prefix notation.
- presentation box — a specially designed and attractive box to hold a product, and make it look more impressive
- prevost d'exiles — Antoine François [ahn-twan frahn-swa] /ɑ̃ˈtwan frɑ̃ˈswa/ (Show IPA), ("Abbé Prévost") 1697–1763, French novelist.
- proxima centauri — the nearest star to the sun at a distance of 4.3 light-years, part of the Alpha Centauri triple-star system located in the constellation Centaurus.
- proxime accessit — the person coming next after the winner in a competitive examination or an academic prize giving; runner-up
- safe deposit box — A safe deposit box is a small box, usually kept in a special room in a bank, in which you can store valuable objects.
- safe-deposit box — a lockable metal box or drawer, especially in a bank vault, used for safely storing valuable papers, jewelry, etc.
- self-exculpatory — intended to excuse oneself from blame or guilt
- self-explanatory — explaining itself; needing no explanation; obvious.
- self-explication — the act of explicating.
- sex-and-shopping — (of a novel) belonging to a genre of novel in which the central character, a woman, has a number of sexual encounters, and the author mentions the name of many up-market products
- shopping complex — a shopping centre
- simple extension — an extension field of a given field, obtained by forming all polynomials in a specified element with coefficients contained in the given field.
- sulphur trioxide — a white corrosive substance existing in three crystalline forms of which the stable (alpha-) form is usually obtained as silky needles. It is produced by the oxidation of sulphur dioxide, and is used in the sulphonation of organic compounds. Formula: SO3
- tax depreciation — Tax depreciation is depreciation in a company's internal financial records that is different from the amount that is used for the internal books.
- the opposite sex — women in relation to men or men in relation to women
- triple-expansion — noting a power source, especially a steam engine, using the same fluid at three successive stages of expansion to do work in three or more cylinders.
- world exposition — world's fair.
- x-ray photograph — a radiograph made with x-rays.
- xenotransplanted — Transplanted by xenotransplantation.