单词 | matrix |
释义 | matrix [`mā·triks] ANALYTICAL CHEMISTRY The analyte as considered in terms of its being an assemblage of constituents, each with its own properties. COMPUTER SCIENCE A latticework of input and output leads with logic elements connected at some of their intersections. ELECTRONICS 1. The section of a color television transmitter that transforms the red, green, and blue camera signals into color- difference signals and combines them with the chrominance subcarrier. Also known as color coder; color encoder; encoder. 2. The section of a color television receiver that transforms the color-difference signals into the red, green, and blue signals needed to drive the color picture tube. Also known as color decoder; decoder. ENGINEERING A recessed mold in which something is formed or cast. GRAPHIC ARTS 1. In a type-casting machine, the portion of the mold that forms the letter face. 2. A heavy, unsized, unfinished paper that is used for molds for stereotype plates. 3. A master negative from which characters are projected in a photocomposition process. HISTOLOGY 1. The intercellular substance of a tissue. Also known as ground substance. 2. The epithelial tissue from which a toenail or fingernail develops. MATERIALS A binding agent used to make an agglomerate mass. MATHEMATICS A rectangular array of numbers or scalars from a vector space. METALLURGY 1. The principal component of an alloy. 2. The precisely shaped form used as the cathode in electroforming. MYCOLOGY The substrate on or in which fungus grows. PETROLOGY The continuous, fine-grained material in which large grains of a sediment or sedimentary rock are embedded. Also known as groundmass. |
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