16-letter words containing p, r, o, c, h
- projection booth — a soundproof compartment in a theater where a motion-picture projector is housed and from which the picture is projected on the screen.
- prophylactically — defending or protecting from disease or infection, as a drug.
- propylthiouracil — a white crystalline compound, C 7 H 1 0 N 2 OS, that interferes with the synthesis of thyroid hormone by the thyroid gland: used in the treatment of hyperthyroidism.
- prospect heights — a town in N Illinois.
- prosthetic group — the nonprotein acid constituent of a conjugate protein, as the heme group of hemoglobin.
- protestant ethic — work ethic.
- pseudohistorical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- pseudoparenchyma — (in certain fungi and red algae) a compact mass of tissue, made up of interwoven hyphae or filaments, that superficially resembles plant tissue.
- psychogeriatrics — the psychology of old age.
- public ownership — ownership by the state; nationalization
- purchasing power — Also called buying power. the ability to purchase goods and services.
- put to the torch — to set fire to; burn down
- pyramidal orchid — a chalk-loving orchid, Anacamptis pyramidalis, bearing a dense cone-shaped spike of purplish-pink flowers with a long curved spur
- radio microphone — a microphone incorporating a radio transmitter so that the user can move around freely
- radiographically — the production of radiographs.
- rainbow seaperch — an embiotocid fish, Hypsurus caryi, living off the Pacific coast of North America, having red, orange, and blue stripes on the body.
- rape of the lock — a mock-epic poem (1712) by Alexander Pope.
- re-chromatograph — to separate and analyse (a mixture of liquids or gases) by means of chromatography a second or further time
- rhynchocephalian — belonging or pertaining to the Rhynchocephalia, an order of lizardlike reptiles that are extinct except for the tuatara.
- riau archipelago — a group of islands belonging to Indonesia, off the SE coast of the Malay Peninsula, at the entrance to the Strait of Malacca. 36,510 sq. mi. (94,561 sq. km).
- rochelle powders — (not in technical use) Seidlitz powders.
- schneider trophy — a trophy for air racing between seaplanes of any nation, first presented by Jacques Schneider (1879–1928) in 1913; won outright by Britain in 1931
- school inspector — an official whose job is to inspect schools and to report on their quality and conditions
- scrovegni chapel — Arena Chapel.
- secondary phloem — phloem derived from the cambium during secondary growth.
- sharia-compliant — (of a product or service) produced or offered in accordance with the doctrines of the sharia
- shepherd's crook — hooked or curved stick
- showcase project — a project designed to attract attention and show off the abilities of the people involved in it
- showy crab apple — a large Japanese bush or tree, Malus floribunda, of the rose family, having red fruit and rose-colored flowers that fade to white.
- spanish moroccan — of or relating to the former Spanish colony of Spanish Morocco (now part of Morocco) or its inhabitants
- spectrochemistry — the branch of chemistry that deals with the chemical analysis of substances by means of the spectra of light they absorb or emit.
- spectroheliogram — a photograph of the sun made with a spectroheliograph.
- splanchnopleural — the double layer formed by the association of the lower layer of the lateral plate of mesoderm with the underlying entoderm, which develops into the embryonic viscera.
- stretch receptor — muscle spindle.
- subtropical high — one of several highs, as the Azores and Pacific highs, that prevail over the oceans at latitudes of about 30 degrees N and S. Also called subtropical anticyclone. Compare high (def 37).
- sulu archipelago — an island group in the SW Philippines, separating the Sulawesi Sea from the Sulu Sea. 1086 sq. mi. (2813 sq. km). Capital: Jolo.
- tephrochronology — a geochronologic technique based on the dating of layers of volcanic ash.
- the anthropocene — a proposed term for the present geological epoch (from the time of the Industrial Revolution onwards), during which humanity has begun to have a significant impact on the environment
- the first couple — the US president and their spouse
- the preconscious — preconscious mental activity
- thermoacidophile — any organism, especially a type of archaebacterium, that thrives in strongly acidic environments at high temperatures.
- thermoplasticity — soft and pliable when heated, as some plastics, without any change of the inherent properties.
- thrombocytopenia — an abnormal decrease in the number of blood platelets.
- through-composed — having different music for each verse: a through-composed song. Compare strophic (def 2).
- to coin a phrase — You say 'to coin a phrase' to show that you realize you are making a pun or using a cliché.
- topsail schooner — a sailing vessel fore-and-aft rigged on all of two or more masts with square sails above the foresail, and often with a square sail before the foresail.
- trick photograph — a photograph that creates an illusion
- troop the colors — to parade the colors, or flag, before troops
- twofold purchase — a purchase using a double standing block and a double running block so as to give a mechanical advantage of four or five, neglecting friction, depending on whether the hauling is on the standing block or the running block.
- uncomprehensible — capable of being comprehended or understood; intelligible.