16-letter words containing si
- panel discussion — a formal discussion before an audience for which the topic, speakers, etc., have been selected in advance.
- paraprofessional — a person trained to assist a doctor, lawyer, teacher, or other professional, but not licensed to practice in the profession.
- paratuberculosis — Johne's disease.
- particle physics — the branch of physics that deals with the properties and behavior of elementary particles.
- passive immunity — immunity resulting from the injection of antibodies or sensitized lymphocytes from another organism or, in infants, from the transfer of antibodies through the placenta or from colostrum.
- passive transfer — Immunology. injection of lymphocytes or antibody from an immune or sensitized donor to a nonimmune host in order to impart immunity or test for allergic reactions.
- past progressive — a verb form consisting of an auxiliary be in the past tense followed by a present participle and used especially to indicate that an action or event was incomplete or in progress at a point of reference in the past, as was sleeping in I was sleeping when the phone rang.
- pelagic division — the biogeographic realm or zone that comprises the open seas and oceans, including water of all depths.
- pelican crossing — place to cross road
- pension benefits — the benefits that are paid to a person in accordance with his pension scheme
- pension mortgage — an arrangement whereby a person takes out a mortgage and pays the capital repayment instalments into a pension fund and the interest to the mortgagee. The loan is repaid out of the tax-free lump sum proceeds of the pension plan on the borrower's retirement
- pension provider — the company or organization that makes provision for a person's pension
- percussion drill — a drill that is operated by percussion
- personal pension — a private pension scheme in which an individual contributes part of his or her salary to a financial institution, which invests it so that a lump sum is available on retirement; this is then used to purchase an annuity
- phlebothrombosis — the presence of a thrombus in a vein.
- photocomposition — any method of composition using photography, as composition by means of a photocomposer.
- photosensitivity — the quality of being photosensitive.
- physical address — (memory management) The address presented to a computer's main memory in a virtual memory system, in contrast to the virtual address which is the address generated by the CPU. A memory management unit translates virtual addresses into physical addresses.
- physical fitness — good physical condition
- physical science — any of the natural sciences dealing with inanimate matter or with energy, as physics, chemistry, and astronomy.
- physical therapy — the treatment or management of physical disability, malfunction, or pain by exercise, massage, hydrotherapy, etc., without the use of medicines, surgery, or radiation.
- physical-capital — tools, machinery, computers, and other equipment that are needed for the production of goods and services: money spent by business firms on physical capital.
- physiognomically — the face or countenance, especially when considered as an index to the character: a fierce physiognomy.
- piece d'occasion — something prepared or used for a special occasion.
- pneumonoconiosis — pneumoconiosis.
- polar opposition — the relation between a pair of antonyms that denote relatively higher and lower degrees of a quality with respect to an explicit or implicit norm rather than absolute values, as the relation between tall and short or light and dark, but not between true and false.
- posigrade rocket — an auxiliary rocket used to separate the sections of a multistage rocket, fired in the direction of flight.
- positive vetting — the checking of a person's background, political affiliation, etc, to assess his suitability for a position that may involve national security
- possession order — (in Britain) a court order that entitles a landlord legally to evict a tenant or squatter and regain possession of the property
- potassium iodide — a white, crystalline, water-soluble powder, KI, having a bitter saline taste: used chiefly in the manufacture of photographic emulsions, as a laboratory reagent, in the preparation of Gram's solution for biological staining, and in medicine as an expectorant and to treat thyroid conditions.
- practice session — a period of training that takes place over a set period of time, for example an hour or several hours
- predispositional — the fact or condition of being predisposed: a predisposition to think optimistically.
- premier division — a football or soccer league division consisting of the top ten Scottish football teams
- price commission — (in Britain) a commission established by the government in 1973 with authority to control prices as a measure against inflation. It was abolished in 1980
- prison psychosis — a state of mental confusion, transitory or permanent, brought on by incarceration or by the anticipation of imprisonment.
- processing plant — a factory where raw materials are treated or prepared by a special method, esp one where food is treated in order to preserve it
- professionalisms — professional character, spirit, or methods.
- progressive jazz — an experimental, nonmelodic, and often free-flowing style of modern jazz, especially in the form of highly dissonant, rhythmically complex orchestral arrangements. Compare bop1 , cool jazz, hard bop, modern jazz.
- progressive jpeg — (graphics, file format) (PJPEG) An implementation of JPEG that supports progressive coding.
- progressive lens — a multifocal eyeglass lens that provides a continuous range of focal power between near and far distances.
- proxime accessit — the person coming next after the winner in a competitive examination or an academic prize giving; runner-up
- pseudo-dionysius — flourished c4th or 5th century a.d, author of a number of mystical works: identified, during the Middle Ages, with Dionysius the Areopagite.
- pseudo-isidorian — of or relating to the collection of documents of the 9th century a.d. that consist chiefly of the Decretals, attributed to Isidore, archbishop of Seville, a.d. 600–36, and that were rejected as spurious in the 15th century.
- psychophysiology — the branch of physiology that deals with the interrelation of mental and physical phenomena.
- purchasing agent — a person who buys materials, supplies, equipment, etc., for a company.
- purchasing power — Also called buying power. the ability to purchase goods and services.
- pyloric stenosis — an abnormal narrowing of the valve at the outlet from the stomach, preventing normal passage of food into the small intestine.
- quarter sessions — an English court of general criminal jurisdiction for crimes less than homicide, held quarterly.
- quasi-commercial — of, relating to, or characteristic of commerce.
- quasi-compulsory — required; mandatory; obligatory: compulsory education.