About Normal Pressure Hydrocephalus. Normal pressure hydrocephalus occurs when excess cerebrospinal fluid accumulates in the brain's ventricles, which are hollow fluid-filled chambers. NPH is called normal pressure because despite the excess fluid, cerebrospinal fluid pressure as measured during a spinal tap is often normal.
â¢ ART DECO (noun). The noun ART DECO has 1 sense: 1. a style of design that was popular in the 1920s and 1930s; marked by stylized forms and geometric designs adapted to mass production. Familiarity information: ART DECO used as a noun is very rare. ART DECO (noun). The noun ART DECO has 1 sense: 1. a style of design that was popular in the 1920s and 1930s; marked by stylized forms and geometric designs adapted to mass production. Familiarity information: ART DECO used as a noun is very rare.
It converts raw (uncompressed) digital video to a compressed format or vice versa. In the context of video compression, codec is a concatenation of encoder and decoderâa device that only compresses is typically called an encoder, and one that only decompresses is a decoder. The compressed data format usually conforms to a standard video compression specification.