19-letter words containing p, a, c, t
- psychotechnological — of or relating to psychotechnology
- psychrometric chart — a chart for calculating values of relative humidity, absolute humidity, and dew point from psychrometer readings.
- public intellectual — an intellectual, often a noted specialist in a particular field, who has become well-known to the general public for a willingness to comment on current affairs
- public-interest law — a branch of law that often utilizes class-action suits to protect the interest of a large group or of the public at large, as in matters relating to racial discrimination, air pollution, etc.
- puncture repair kit — set of tools for patching a bicycle tyre
- put one's back into — to devote all one's strength to (a task)
- put sth into action — If you put an idea or policy into action, you begin to use it or cause it to operate.
- quartermaster corps — the branch of the U.S. Army responsible for supplying food, clothing, fuel, and equipment and for the operation of commissaries, laundries, etc.
- quick on the uptake — You say that someone is quick on the uptake when they understand things quickly. You say that someone is slow on the uptake when they have difficulty understanding simple or obvious things.
- radiochromatography — chromatography in which radiolabeled substances on the chromatogram are determined quantitatively or qualitatively by measuring their radioactivity.
- radiopharmaceutical — any of a number of radioactive drugs used diagnostically or therapeutically.
- rap on the knuckles — a mild reprimand or light sentence
- reactive depression — depression occurring in response to some situational stress, as loss of one's job.
- reactor temperature — The reactor temperature is the temperature at various stages in a reactor in an FCC unit.
- reciprocity failure — a failure of the two exposure variables, light intensity and exposure time, to behave in a reciprocal fashion at very high or very low values
- reconceptualization — to form into a concept; make a concept of.
- reduction potential — (in a galvanic cell) the potential of the electrode at which reduction occurs.
- relative complement — the set of elements contained in a given set that are not elements of another specified set.
- relocation expenses — Relocation expenses are a sum of money that a company pays to someone who moves to a new area in order to work for the company. The money is to help them pay for moving house.
- repeat prescription — A repeat prescription is a prescription for a medicine that you have taken before or that you use regularly.
- republic of vietnam — the name (from 1955–75) for South Vietnam, as an independent republic, following the division of the country in 1954 into North Vietnam and South Vietnam
- reserved occupation — in time of war, an occupation from which one will not be called up for military service
- resorcinolphthalein — fluorescein.
- ring up the curtain — to begin a theatrical performance
- royal correspondent — a journalist who reports on matters relating to royalty
- sacrifice operative — a euphemistic term for a suicide bomber
- saint patrick's day — March 17, observed by the Irish in honor of St. Patrick, the patron saint of Ireland.
- san juan capistrano — a city in SW California: site of old Spanish mission; known for annual return of swallows, said to occur on March 19.
- sanitary protection — Sanitary protection is sanitary towels or tampons.
- santa rosa de copan — a town in W Honduras: site of extensive Mayan ruins.
- scare the pants off — to scare extremely
- secondary picketing — the picketing by strikers of a place of work that supplies goods to or distributes goods from their employer
- sexual reproduction — reproduction involving the union of gametes.
- shopping facilities — shops or other retail services
- short-stay car park — a car park where a car can be left for a relatively short time
- simple carbohydrate — a carbohydrate, as glucose, that consists of a single monosaccharide unit.
- slugging percentage — a number expressing a player's average effectiveness in making extra-base hits, calculated by dividing the total number of bases (from all singles, doubles, triples, and home runs) by the number of official at bats
- smoking compartment — a compartment of a train where smoking is permitted
- social anthropology — study of human culture
- solid-state physics — the branch of physics that deals with the macroscopic physical properties of matter, especially solids; the study of the electromagnetic, structural, and thermodynamic properties of solids.
- south pacific ocean — the part of the Pacific Ocean extending S from the Equator to the Antarctic continent.
- southern crab apple — a tree, Malus angustifolia, of the eastern U.S., having oblong leaves, fragrant, pink or rose-colored flowers, and small, round, yellow-green fruit.
- spanish west africa — a former overseas territory of Spain in NW Africa: divided in 1958 into the overseas provinces of Ifni and Spanish Sahara
- special partnership — limited partnership.
- specialized subject — a school or university subject that concentrates on a particular field of knowledge
- specific characters — the persistent features that distinguish one species from all others
- specific resistance — resistivity (def 2).
- specific-resistance — the power or property of resistance.
- specular reflection — Specular reflection is reflection of heat or light in which the angles of different parts of the surface are important.
- speculative fiction — a broad literary genre encompassing any fiction with supernatural, fantastical, or futuristic elements