17-letter words containing p, h, a, r, y
- psychoprophylaxis — Lamaze method.
- psychotherapeutic — psychotherapy.
- pull your head in — be quiet!
- pythagorean scale — the major scale as derived acoustically by Pythagoras from the perfect fifth.
- radiation therapy — x-rays used as treatment
- repertory theater — repertory (def 2).
- respiratory chain — a series of mitochondrial proteins that transport electrons of hydrogen, released in the Krebs cycle, from acetyl coenzyme A to inhaled oxygen to form H 2 O: the energy released in the process is conserved as ATP.
- reticulate python — a python, Python reticulatus, of southeastern Asia and the East Indies, sometimes growing to a length of 32 feet (10 meters): usually considered to be the largest snake in the world.
- rough puff pastry — a rich flaky pastry made with butter and used for pie-crusts, flans, etc
- school playground — school's outdoor recreation area
- shortcrust pastry — a basic type of pastry that is made with half the quantity of fat to flour, and has a crisp but crumbly texture
- spark photography — photography of fast-moving objects, as bullets, by the light of an electric spark.
- spherical polygon — a closed figure formed by arcs of great circles on a spherical surface.
- spiny-headed worm — any of a small group of endoparasites of the phylum Acanthocephala, as larvae parasitic in insects and crustaceans and as adults in various vertebrates.
- spongy parenchyma — the lower layer of the ground tissue of a leaf, characteristically containing irregularly shaped cells with relatively few chloroplasts and large intercellular spaces.
- stereolithography — a process for creating three-dimensional objects using a computer-controlled laser to build up the required structure, layer by layer, from a liquid photopolymer that solidifies.
- stereophotography — photography producing stereoscopic images.
- stymphalian birds — a flock of predacious birds of Arcadia that were driven away and killed by Hercules as one of his labors.
- tertiary syphilis — the third stage of syphilis, characterized by involvement of the internal organs, especially the brain, spinal cord, heart, and liver.
- the lord's prayer — the, the prayer given by Jesus to His disciples, and beginning with the words Our Father. Matt. 6:9–13; Luke 11:2–4.
- to keep your head — If you keep your head, you remain calm in a difficult situation. If you lose your head, you panic or do not remain calm in a difficult situation.
- to play with fire — If you say that someone is playing with fire, you mean that they are doing something dangerous that may result in great harm for them and cause many problems.
- trick photography — photography that creates an illusion
- varix lymphaticus — a similar condition affecting an artery or lymphatic vessel
- walleye surfperch — a common black and silvery surfperch (Hyperprosopon argenteum) found off the coast of California
- youth programming — the creation and scheduling of television programmes specifically aimed at young people
- zoogeographically — In a zoogeographical way.