15-letter words containing p, r, o, t, g, i
- absorption edge — a discontinuity in the graph of the absorption coefficient of a substance plotted against the wavelength of x-rays being absorbed, representing the minimum energy necessary to free electrons from particular shells of the atoms of the substance.
- actinopterygian — belonging or pertaining to the Actinopterygii, a group of bony fishes.
- adjective group — An adjective group or adjectival group is a group of words based on an adjective, such as 'very nice' or 'interested in football'. An adjective group can also consist simply of an adjective.
- age-appropriate — Something that is age-appropriate is suitable for the age that a person is.
- anchorage point — a point to which something such as the straps securing a childseat can be safely attached
- angina pectoris — a sudden intense pain in the chest, often accompanied by feelings of suffocation, caused by momentary lack of adequate blood supply to the heart muscle
- anthropobiology — the biological study of the human species
- anthropogenesis — the study of the origins of man
- anthropological — the science that deals with the origins, physical and cultural development, biological characteristics, and social customs and beliefs of humankind.
- anthropologists — Plural form of anthropologist.
- anthropophagite — a cannibal
- antipornography — opposed to or acting against pornography
- antiprogressive — opposed to or acting against progression in society
- approach lights — lights on the runway that guide planes coming in to land
- approval rating — approval of a politician as shown by opinion polls
- autobiographers — Plural form of autobiographer.
- autobiographies — Plural form of autobiography.
- autolithography — a lithographic technique by which the artist draws or traces with a brush and pen directly on a stone or plate.
- autoradiographs — Plural form of autoradiograph.
- autoradiography — the technique or process of making autoradiographs.
- bacteriophagous — Pertaining to the predation and consumption of bacterium.
- banking product — one of the various services offered by a bank to its customers: mortgages, loans, insurance etc
- biostratigraphy — the examination of the ages of rock strata by using fossils
- blasting powder — a form of gunpowder made with sodium nitrate instead of saltpeter, used chiefly for blasting rock, ore, etc.
- blotch printing — a fabric-printing method in which the ground color is transferred from the cylinder and the motif retains the original hue of the cloth.
- catastrophising — Present participle of catastrophise.
- catastrophizing — Present participle of catastrophize.
- chromatographic — (analytical chemistry) Of or pertaining to chromatography.
- cinematographed — a motion-picture projector.
- cinematographer — A cinematographer is a person who decides what filming techniques should be used during the shooting of a film.
- cinematographic — a motion-picture projector.
- computer dating — the use of computers by dating agencies to match their clients
- copyright block — a block of four or more U.S. stamps that includes, in the selvage of the sheet, the copyright mark of the U.S. Postal Service.
- corporate image — the way an organization is presented to or perceived by its members and the public
- countercampaign — a campaign responding to another campaign
- counterplotting — Present participle of counterplot.
- counterpointing — Present participle of counterpoint.
- counterpunching — Present participle of counterpunch.
- courting couple — a pair of lovers
- crossing patrol — a person who holds up the traffic so that school children can cross the road safely
- crossopterygian — any bony fish of the subclass Crossopterygii, having fleshy limblike pectoral fins. The group, now mostly extinct, contains the ancestors of the amphibians
- cryptographical — the science or study of the techniques of secret writing, especially code and cipher systems, methods, and the like. Compare cryptanalysis (def 2).
- cryptozoologist — an expert in cryptozoology
- daguerreotyping — Present participle of daguerreotype.
- daguerreotypist — an obsolete photographic process, invented in 1839, in which a picture made on a silver surface sensitized with iodine was developed by exposure to mercury vapor.
- data processing — Data processing is the series of operations that are carried out on data, especially by computers, in order to present, interpret, or obtain information.
- dermatoglyphics — the lines forming a skin pattern, esp on the palms of the hands and soles of the feet
- dermatographism — a condition in which touching or lightly scratching the skin causes raised, reddish marks.
- direct coupling — conductive coupling between electronic circuits, as opposed to inductive or capacitative coupling
- double printing — the exposure of the same positive photographic emulsion to two or more negatives, resulting in the superimposition of multiple images after development
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