Términos
Resultado de búsqueda
polvo (material)
Definición
Partículas finas y secas de material considerado resultado de la desintegración.
Jerarquía
polvo (partículas sólidas)
Definición
Se refiere en general a una sustancia formada por partículas sólidas molidas, pulverizadas o finamente dispersadas.
Términos Alternativos
- polvos (partículas sólidas)
Jerarquía
polvo de aluminio
Definición
Tipo de polvo de bronce hecho de aluminio puro o de aleación de aluminio, utilizado comúnmente como pigmento en pintura industrial, plásticos, compuesto de calafateo, y como revestimiento textil.
Jerarquía
polvo de cuero
Definición
Cuero en polvo especialmente preparado y estandarizado para usar en análisis y materiales taninos. También se usa en preservación de papel y pergaminos.
Términos Alternativos
- cuero en polvo
Jerarquía
polvo de mármol
Definición
Trozos finamente molidos utilizados como relleno o abrasivo en jabones para las manos y para fabricar escayolas.
Términos Alternativos
- harina de mármol
- mármol molido
Jerarquía
polvo de piedra
Definición
Piedra pulverizada utilizada para llenar espacios entre piedras irregulares y producir una superficie estable.
Términos Alternativos
- polvo de roca
Jerarquía
polvo para estarcir
Definición
Polvos finos de diferentes materiales utilizado para tratar o proteger la superficie de un dibujo o pergamino, o para transferir un diseño a través de un dibujo con perforaciones.
Términos Alternativos
- pigmento en polvo (estarcido)
- polvo de pómez
Jerarquía
pólvora
Definición
Mezcla íntima de salitre, sulfuro y carbón utilizada como detonador, cebo y propulsor de explosivo.
Términos Alternativos
- pólvora negra
Jerarquía
polyacrylamide gel electrophoresis
Definición
Polyacrylamide gel electrophoresis (PAGE) subjects proteins coated in an anionic detergent to electrophoresis in a polyacrylamide gel in order to determine their molecular weight.
Jerarquía
polybutyl methacrylate
Definición
Colorless liquid polymer used as a a water-repellent synthetic resin varnish and barrier coating.
Jerarquía
polycapillary conic collimators
Definición
Conically shaped devices used in conjunction with polycapillary optics to collimate and guide divergent x-rays.
Jerarquía
Polychaeta (class)
Definición
Members of a class containing around 10,000 species of marine worms having well-defined segmentation of the body, differentiated head with eyes, two sexes, and swimming appendages bristles, including rag worms, lugworms, bloodworms, sea mice, and others.
Jerarquía
polychrome façades
Definición
Façades and other exterior walls having an overall design, such as stripes or geometric patterns, comprising stones of contrasting colors. Examples are the distinctive polychrome façades that typify Tuscan architecture.
Jerarquía
polyclinics
Definición
Buildings that house clinics treating diseases and injuries of many sorts, offering broad general care that is usually on an outpatient basis. Polyclinics include hospital outpatient departments at a general practitioner health center or hospital in an urban or town environment, as well as facilities attached to major factories or other work places. They often contain reception and waiting rooms, a registration desk, consulting and treatment rooms, a pathological laboratory, X-ray facilities, physiotherapy areas, and small operating theaters.
Jerarquía
polycyclohexanone
Definición
Any of a class of low molecular-weight synthetic varnish resins, also known as ketone resins, composed of polymerized cyclohexanone and/or methyl cyclohexanone and widely used for picture varnishes.
Jerarquía
polyester (fiber)
Definición
Refers to polyester polymers used as fibers woven into fabrics.
Jerarquía
polyester film
Definición
A range of biaxially drawn films made from polyethelene terephthalate polymer, created by extruding the polymer through a slot die, then drawing it in two directions at right angles to orient the molecules in the plane of the film, then held under tension and heat set. Polyester film has great strength, dimensional stability, and resistance to chemicals, and has been used in a variety of industrial applications, as a base for motion picture film, videotape, and audio tape, and archival housing for documents, laminate, and many other uses.
Jerarquía
polyester plate lithography
Definición
A planographic printing technique first developed as a means for creating inexpensive offset prints. It was subsequently adopted as an artist's printmaking technique mimicing traditional lithography based on the resistance of oil and water. Images can be created on specially made polyester plates by direct drawing with waterproof materials or printing the plate on a laser printer. The imaged plate is then washed with a wetting solution and charged with an oil-based ink. These are then run though a lithographic or etching press in the conventional way.
Jerarquía
polyethylene glycol
Definición
Any of a family of water-soluble polymers that range in viscosity from liquid to wax-like solid. They are present in organic solvents for dyes and resins; and used as wetting agents, emulsifiers, and plasticizers.
Jerarquía
polyethylene terephthalate
Definición
Thermoplastic polymer of the polyester family made by condensing ethylene glycol and terephthalic acid. It is used to make textile fibers, disposable beverage bottles, photographic film, and magnetic recording tape. Polyethylene terephthalate (PET) was the first commercially marketed polyester, sold as Dacron (TM) in the U.S.
