13-letter words containing h, e, p, t, r
- pharmaceutics — a pharmaceutical preparation or product.
- pharyngectomy — excision of part or all of the pharynx.
- phenmetrazine — a compound, C 1 1 H 1 5 NO, used chiefly to control the appetite in the treatment of obesity.
- phenobarbital — a white, crystalline powder, C 1 2 H 1 2 N 2 O 3 , used as a sedative, a hypnotic, and as an antispasmodic in epilepsy.
- phonoreceptor — a receptor stimulated by sound waves.
- phosphoretted — combined with phosphorus, especially in its lowest valence state.
- phosphorylate — to introduce the phosphoryl group into (an organic compound).
- phosphuretted — treated or combined with phosphorus
- photo gallery — display of collected photographs
- photoallergic — photosensitive.
- photocomposer — a machine for setting type photographically.
- photodetector — photosensor.
- photoelectric — pertaining to the electronic or other electric effects produced by light.
- photoelectron — an electron emitted from a system by the photoelectric effect.
- photofinisher — a person whose profession is photofinishing
- photophoresis — the move away from a strong light source by previously suspended particles in a gas
- photoreaction — a chemical reaction that involves or requires light.
- photoreceptor — a receptor stimulated by light.
- photorecorder — a device for making photographic records.
- phototelegram — a telegram that is sent by means of phototelegraphy
- phraseologist — a person who treats of or is concerned with phraseology.
- phreatophytic — of, possessing the properties of, or relating to a phreatophyte
- phycoerythrin — a red protein pigment occurring in red algae.
- physiotherapy — physical therapy.
- phytoestrogen — an estrogen-like compound occurring naturally in plants of the legume family and in grains, vegetables, and fruits.
- phytonutrient — phytochemical.
- phytoplankter — a minute organism which constitutes part of phytoplankton
- piano teacher — tutor of piano-playing
- picture phone — a mobile phone that can take, send, and receive photographs
- pitch surface — (in a gear or rack) an imaginary surface forming a plane (pitch plane) a cylinder (pitch cylinder) or a cone or frustrum (pitch cone) that moves tangentially to a similar surface in a meshing gear so that both surfaces travel at the same speed.
- pitcher plant — any of various insectivorous New World bog plants of the genera Sarracenia, Darlingtonia, and Heliamphora, having tubular or trumpet-shaped leaves containing a liquid in which insects are trapped.
- plant hormone — an organic chemical, as auxin, produced by plant cells and functioning at various sites to regulate growth, turning, metabolic processes, etc.
- platform shoe — a shoe with a platform.
- plethysmogram — the recording of a plethysmograph.
- pneumatograph — pneumograph.
- pneumatophore — Botany. a specialized structure developed from the root in certain plants growing in swamps and marshes, serving as a respiratory organ.
- pocket gopher — any of numerous burrowing rodents of the family Geomyidae, of western and southern North America and Central America, having large, external, fur-lined cheek pouches.
- porkpie (hat) — a man's soft hat with a round, flat crown
- porte-cochere — a covered carriage entrance leading into a courtyard.
- posix threads — (programming) (Pthreads) A POSIX standard API that defines a set of C programming language types, functions and constants for creating and manipulating pre-emptive threads. The standard's full name is "POSIX.1c, Threads extensions (IEEE Std 1003.1c-1995)". Implementations are available on many Unix-like POSIX-conformant operating systems such as FreeBSD, NetBSD, OpenBSD, GNU/Linux, Mac OS X and Solaris as well as DR-DOS and Microsoft Windows. Pthreads was designed and implemented in the PART Project (POSIX / Ada-Runtime Project).
- potato-masher — a kitchen implement used to crush or mash potatoes
- poulard wheat — a Mediterranean wheat, Triticum turgidum, grown as a forage crop in the U.S.
- powder method — a method of x-ray determination of crystal structure using a powdered sample.
- pre christmas — the annual festival of the Christian church commemorating the birth of Jesus: celebrated on December 25 and now generally observed as a legal holiday and an occasion for exchanging gifts.
- pre-adulthood — of or relating to the period prior to adulthood: preadult strivings for independence.
- pre-christian — of, relating to, or belonging to a time or period before the Christian Era.
- pre-christmas — the annual festival of the Christian church commemorating the birth of Jesus: celebrated on December 25 and now generally observed as a legal holiday and an occasion for exchanging gifts.
- pre-establish — to establish, set up, set out, arrange or make secure in advance or previously
- preanesthetic — a substance that produces a preliminary or light anesthesia.
- preattachment — an act of attaching or the state of being attached.