12-letter words starting with ph
- photomontage — a combination of several photographs joined together for artistic effect or to show more of the subject than can be shown in a single photograph.
- photoneutron — a neutron emitted from a nucleus during photodisintegration.
- photonuclear — of, relating to, or caused by the collision of high-energy photons with the nucleus of an atom.
- photooxidize — to undergo or cause to undergo photooxidation
- photophilous — of or relating to an organism, as a plant, that is receptive to, seeks, or thrives in light.
- photopolymer — a polymer or plastic that undergoes a change in physical or chemical properties when exposed to light.
- photoproduct — any product which is produced by a chemical reaction that uses light or other electromagnetic radiation to increase energy of particles
- photorealism — a style of painting flourishing in the 1970s, especially in the U.S., England, and France, and depicting commonplace scenes or ordinary people, with a meticulously detailed realism, flat images, and barely discernible brushwork that suggests and often is based on or incorporates an actual photograph.
- photosetting — photocompose.
- phototherapy — treatment of disease, especially of the skin, by means of light rays.
- photothermic — pertaining to the thermal effects of light.
- phototrophic — any organism that uses light as its principal source of energy.
- phototropism — phototropic tendency or growth.
- phototypeset — to set (type matter) by phototypesetting
- photovoltaic — of or relating to the photovoltaic effect.
- phragmoplast — the cytoplasmic structure that forms at the equator of the spindle after the chromosomes have divided during the anaphase of plant mitosis, and that initiates cell division.
- phrasal verb — a combination of verb and one or more adverbial or prepositional particles, as catch on, take off, bring up, or put up with, functioning as a single semantic unit and often having an idiomatic meaning that could not be predicted from the meanings of the individual parts.
- phrase-maker — a person who is skilled in coining well-turned phrases; phraseologist.
- phrasemaking — the making up or coining of memorable phrases or slogans
- phrasemonger — phrasemaker (def 2).
- phraseograph — a phrase for which there is a phraseogram.
- phreatophyte — a long-rooted plant that absorbs its water from the water table or the soil above it.
- phrenologist — a psychological theory or analytical method based on the belief that certain mental faculties and character traits are indicated by the configurations of the skull.
- phrenologize — to treat with phrenology or phrenological methods
- phrontistery — a place or establishment for thinking, studying, or learning
- phrygian cap — a soft, conical cap represented in ancient Greek art as part of Phrygian dress and associated, since the late 18th and early 19th centuries, with the liberty cap.
- phycologists — the branch of botany dealing with algae.
- phycoxanthin — a yellow pigment found in brown seaweeds and types of algae
- phylacteries — Judaism. either of two small, black, leather cubes containing a piece of parchment inscribed with verses 4–9 of Deut. 6, 13–21 of Deut. 11, and 1–16 of Ex. 13: one is attached with straps to the left arm and the other to the forehead during weekday morning prayers by Orthodox and Conservative Jewish men.
- phylogenesis — the development or evolution of a particular group of organisms.
- phylogenetic — the development or evolution of a particular group of organisms.
- physicalness — of or relating to the body: physical exercise.
- physiognomic — the face or countenance, especially when considered as an index to the character: a fierce physiognomy.
- physiography — the science of physical geography.
- physiologies — the branch of biology dealing with the functions and activities of living organisms and their parts, including all physical and chemical processes.
- physiologist — a specialist in physiology.
- physogastric — pertaining to the swollen, membranous abdomen of certain insects, especially termite and ant queens.
- physostomous — having the mouth and air bladder connected by an air duct.
- phytobenthos — microscopic plants that live in the bottom of the ocean
- phytobiology — the branch of biology dealing with plants.
- phytoclimate — the climate of a small area, as of confined spaces such as caves or houses (cryptoclimate) of plant communities, wooded areas, etc. (phytoclimate) or of urban communities, which may be different from that in the general region.
- phytogenesis — the origin and development of plants.
- phytographer — a botanist involved with plant description
- phytohormone — hormone (def 3).
- phytonadione — vitamin K1.
- phytophagous — herbivorous.
- phytophthora — any of a group of fungi of the genus Phytophthora, which cause a serious plant disease, especially affecting apple and pear trees and potatoes.
- phytotherapy — the use of plants and plant products for medicinal purposes