15-letter words containing c, h, o, p, a
- nonpsychiatrist — a person who is not a psychiatrist
- nonpsychoactive — Not psychoactive.
- ophthalmoscopes — Plural form of ophthalmoscope.
- ophthalmoscopic — Of, pertaining to or using an ophthalmoscope.
- orthopaedic bed — a specially firm bed designed to help correct or ameliorate the discomfort of disorders of the spine and joints
- orthopaedically — in an orthopaedic manner
- orthopsychiatry — an approach to psychiatry concerned with the study and treatment of behavioral disorders, especially of young people.
- package holiday — a holiday arranged by a travel company in which your travel and accommodation are booked for you
- pairs champions — competitors in or winners of a pairs championship
- palaeoanthropic — relating to palaeoanthropology
- paleoencephalon — paleencephalon.
- paleogeophysics — (used with a plural verb) inferred geophysical conditions or processes of designated periods of the geologic past.
- paleolithic man — any of the prehistoric populations of humans, as the Cro-Magnon, living in the late Pliocene and the Pleistocene epochs.
- panoramic sight — an artillery sight that can be rotated horizontally in a full circle.
- paraheliotropic — (of leaves) turning away from light; sun-avoiding
- parthenogenetic — development of an egg without fertilization.
- passenger coach — a carriage in which passengers sit
- pat on the back — to strike lightly or gently with something flat, as with a paddle or the palm of the hand, usually in order to flatten, smooth, or shape: to pat dough into flat pastry forms.
- patchwork quilt — cover sewn from patches of cloth
- pavel petrovich — Paul I (def 2).
- peachblow glass — an American art glass made in various pale colors and sometimes having an underlayer of milk glass.
- peacock feather — a (distinctive and brightly coloured) feather from the peacock
- perchloric acid — a colorless, syrupy hygroscopic liquid, HClO 4 , an acid of chlorine containing one more oxygen atom than chloric acid: used chiefly as a reagent in analytical chemistry.
- perchloroethane — hexachloroethane.
- phantom circuit — a circuit derived from two suitably arranged pairs of wires, each pair being a circuit (side circuit) and also acting as one half of an additional derived circuit, the entire system providing the capabilities of three circuits while requiring wires for only two.
- pharmacological — the science dealing with the preparation, uses, and especially the effects of drugs.
- pharmacotherapy — the treatment of disease through the administration of drugs.
- pheasant coucal — a brown and black, red-eyed Australian bird, Centropus phasianinus, with a pheasantlike tail.
- phenakistoscope — an early form of a zoetrope in which figures are depicted in different poses around the edge of a disc. When the disc is spun, and the figures observed through the apertures around the edge of the disc, they appear to be moving
- phenomenalistic — the doctrine that phenomena are the only objects of knowledge or the only form of reality.
- philanthropical — of, pertaining to, engaged in, or characterized by philanthropy; benevolent: a philanthropic foundation.
- philosophically — of or relating to philosophy: philosophical studies.
- phonautographic — relating to a phonautograph or a piece of equipment that records sound visually by detecting the sound waves and indicating them on a graph
- phonemicization — a grouping of phonemes
- phoneticization — the representation of speech in writing using a system in which individual symbols reflect speech sounds in a regular manner
- phonocardiogram — the graphic record produced by a phonocardiograph.
- phonogramically — in a phonogramic manner
- phosphocreatine — a compound, C 4 H 1 0 O 5 N 3 P, found chiefly in muscle, formed by the enzymatic interaction of an organic phosphate and creatine, the breakdown of which provides energy for muscle contraction.
- phosphoric acid — any of three acids, orthophosphoric acid, H 3 PO 4 , metaphosphoric acid, HPO 3 , or pyrophosphoric acid, H 4 P 2 O 7 , derived from phosphorus pentoxide, P 2 O 5 , and various amounts of water.
- photoactivation — the activation or control of a chemical, chemical reaction, or organism by light, as the activation of chlorophyll by sunlight during photosynthesis.
- photodissociate — to split or break up molecules as a result of the absorption of photons
- photoelasticity — the phenomenon of double refraction of polarized light by a transparent substance under elastic stress, used to measure strain in elastic, transparent materials.
- photoexcitation — the creation of an increase in energy in atoms, molecules or ions caused by the absorption of a photon
- photomacrograph — a photograph showing a subject at actual size or somewhat larger.
- photomechanical — noting or pertaining to any of various processes for printing from plates or surfaces prepared by the aid of photography.
- photomicrograph — a photograph taken through a microscope.
- photorefractive — of or relating to a change in the index of refraction by spatial variations of the light intensity, as in a laser.
- phototactically — in a phototactic manner
- phototropically — in a phototropic manner
- phrenologically — in a manner relating to phrenology