12-letter words containing h, o, t, p
- photo-finish — If the end of a race is a photo-finish, two or more of the competitors cross the finishing line so close together that a photograph of the finish has to be examined to decide who has won.
- photo-offset — a method of printing, based on photolithography, in which the inked image is transferred from the metal plate to a rubber surface and then to the paper.
- photo-stated — a camera for making facsimile copies of documents, drawings, etc., in the form of paper negatives on which the positions of lines, objects, etc., in the originals are maintained.
- photoactinic — emitting radiation having the chemical effects of light and ultraviolet rays, as on a photographic film.
- photoanalyst — a person who analyzes and interprets photographs, especially a military specialist in aerial or satellite photography.
- photobiology — the study of the effects of light on biological systems.
- photocathode — a cathode, typically of a cesium or sodium compound, having the property of emitting electrons when activated by light or other radiation.
- photochromic — (of chemically treated glass or plastic) capable of darkening or changing color when exposed to light.
- photocompose — to set (type) on a photocomposer.
- photocurrent — an electric current produced by a photoelectric effect.
- photodynamic — the science dealing with light and its effects on living organisms.
- photoelastic — displaying photoelasticity; of or relating to photoelasticity
- photoengrave — to make a photoengraving of.
- photoexcited — increased in energy due to photoexcitation
- photofission — nuclear fission induced by the absorption of a high-energy photon.
- photogelatin — pertaining to any photographic process in which gelatin is used to receive or transfer a print.
- photogeology — the technique of interpreting geology from aerial photographs or compiling geologic maps therefrom.
- photoglyphic — of or relating to photoglyphy
- photographer — a person who takes photographs, especially one who practices photography professionally.
- photographic — of or relating to photography.
- photogravure — any of various processes, based on photography, by which an intaglio engraving is formed on a metal plate, from which ink reproductions are made.
- photoinduced — induced by light.
- photokinesis — movement occurring upon exposure to light.
- photolyzable — able to undergo photolysis
- photomachine — a machine that prints copies of digital photographs
- 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.
- 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.
- phrontistery — a place or establishment for thinking, studying, or learning
- phycologists — the branch of botany dealing with algae.
- phycoxanthin — a yellow pigment found in brown seaweeds and types of algae
- phylogenetic — the development or evolution of a particular group of organisms.
- 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.