12-letter words containing p, h, y, r
- myrmecophily — symbiosis with ants
- myrmecophyte — A plant that lives in association with a colony of ants. The degree of association varies and is assumed to be symbiotic in some cases.
- mythographer — a person who collects or records myths in writing.
- narcotherapy — an infrequently used method of treating mental disorders by intravenous injection of barbiturates.
- nephelometry — Bacteriology. an apparatus containing a series of barium chloride standards used to determine the number of bacteria in a suspension.
- nephrography — Diagnostic imaging of the kidneys.
- neuronopathy — A form of polyneuropathy caused by destruction of neurons.
- night prayer — the last of the seven canonical hours; compline
- northern spy — an American variety of red-striped apple that ripens in autumn or early winter.
- oceanography — the branch of physical geography dealing with the ocean.
- odontography — a treatise regarding the teeth
- onychophoran — any small, predatory, caterpillarlike animal of the phylum Onychophora, common in tropical forests, having stubby legs ending in pincers.
- oophorectomy — the operation of removing one or both ovaries; ovariectomy.
- organography — the description or visual depiction of organs.
- ornithophily — pollination of flowers by birds
- ornithoscopy — divination from the observation of birds
- oropharynxes — Plural form of oropharynx.
- pachycarpous — having a thick pericarp
- pachydermous — any of the thick-skinned, nonruminant ungulates, as the elephant, hippopotamus, and rhinoceros.
- palaeography — the study of the handwritings of the past, and often the manuscripts as well, so that they may be dated, read, etc, and may serve as historical and literary sources
- palatography — a technique for observing the position of the tongue in relation to the palate during articulation, especially by placing powder or dye on the palate and then noting the area from which it has been removed by the contact of the tongue with the palate during the production of a speech sound.
- para rhatany — See under rhatany (def 1).
- parahydrogen — the form of molecular hydrogen in which the nuclei of the two hydrogen atoms contained in the molecule have spins in opposite directions.
- parapophysis — the process of a vertebra
- parapsychism — the experience of mental phenomena that are beyond the scope of normal physical explanation
- parity check — a method for detecting errors in data communications or within a computer system by counting the number of ones or zeros per byte or per word, including a special check bit (parity bit) to see if the value is even or odd.
- pastry brush — a small, flat brush for coating pastry with butter, egg, etc.
- peach brandy — brandy distilled from the fermented juice of peaches.
- pearl hominy — whole or ground hulled corn from which the bran and germ have been removed by bleaching the whole kernels in a lye bath (lye hominy) or by crushing and sifting (pearl hominy)
- pearly white — white and lustrous as a pearl.
- penny shares — Penny shares are shares that are offered for sale at a low price.
- pentahydrate — a hydrate that contains five molecules of water, as potassium molybdate, KMoO 4 ⋅5H 2 O.
- pentahydroxy — (of a molecule) containing five hydroxyl groups.
- pericynthion — the point at which a spacecraft launched from earth into a lunar orbit is nearest the moon
- perionychium — the epidermis surrounding the base and sides of a fingernail or toenail.
- peripherally — pertaining to, situated in, or constituting the periphery: peripheral resistance on the outskirts of the battle area.
- petroglyphic — relating to or having the characteristics of a petroglyph or carving made in rock
- petrophysics — the analysis of the constitution and characteristics of rocks
- phanerophyte — a tree or shrub that bears its perennating buds more than 25 cm above the level of the soil
- pharmacology — the science dealing with the preparation, uses, and especially the effects of drugs.
- pharyngology — the science of the pharynx and its diseases.
- pharyngotomy — surgical incision into the pharynx
- phased array — a radar antenna consisting of an array of dipoles that are excited in or out of phase with each other to control beam direction and radiation pattern without moving the antenna. Compare dipole (def 3).
- phenocrystic — relating to a phenocryst
- phenyl group — the univalent group C 6 H 5 –, derived from benzene.
- philanthropy — altruistic concern for human welfare and advancement, usually manifested by donations of money, property, or work to needy persons, by endowment of institutions of learning and hospitals, and by generosity to other socially useful purposes.
- phlebography — venography.
- photopolymer — a polymer or plastic that undergoes a change in physical or chemical properties when exposed to light.
- phototherapy — treatment of disease, especially of the skin, by means of light rays.
- phreatophyte — a long-rooted plant that absorbs its water from the water table or the soil above it.