| 释义 |
matrix
\ˈmā.triks, -rēks sometimes ˈma.-\ noun
(plural matri·ces \ˈmā.trəˌsēz or ˈma.- sometimes ˈma.trəsə̇z\ ; or matrix·es)
Etymology: Latin, from matr-, mater mother
1.
a. archaic : uterus
b. : the intercellular substance of a tissue (as cartilage)
c. : the thickened epithelium at the base of a fingernail or toenail from which new nail substance develops
2.
a. : something (as a surrounding or pervading substance or element) within which something else originates or takes form or develops
< an atmosphere of understanding and friendliness that is the matrix of peace >
b. : a place or point of origin or growth : cradle
< viewing the East as the matrix of civilization >
3. : a mass by which something is enclosed or in which something is embedded: as
a.
(1) : the natural material in which a fossil, metal, gem, crystal, or pebble is embedded
(2) : gangue
(3) : groundmass
b. : an external lightly staining layer presumably composed of deoxyribonucleic acid and basic proteins that is held to surround the chromonemata of a fully differentiated chromosome
4.
a. : a recessed mold from which a relief surface is cast: as
(1) : strike 14
(2) : a brass character used in a typesetting machine; also : a comparable character used in a photocomposing machine
(3) : a stereotype mold
(4) : an electrotype mold
b. : a hollow in a slab designed to receive a monumental brass
c. : a hob used to form a punch from which a die for striking coins and medals is made
d. : die 6a(1)
e. : an engraved or inscribed die or stamp used in making the impression of a seal (as on wax or clay)
f. : an electroformed impression of a phonograph record that is used for mass-producing duplicates of the original recording — see master matrix
5.
a. : a foundation for inlaid or overlaid damascened work or for similar work
b. : the principal constituent of an alloy
c.
(1) : a strip or band placed so as to serve as a retaining outer wall of a tooth in filling a cavity
(2) : a metal or porcelain pattern in which an inlay is cast or fused
6. : a material used to bind together the materials in an agglomerated mass (as a cement used in briquetting coal dust or in making concrete)
7. : a gem stone cut from some stone (as opal or turquoise) and the surrounding natural material
8. : the substrate on or within which a fungus grows
9. : one of a class of rectangular arrays of mathematical elements (as the coefficients of simultaneous linear equations) that are subject to special algebraic laws
< a matrix combines with numbers or other matrices >
10. in color photography : a positive photographic image that accepts dye differentially according to density and transfers the dye to make a final color print
11.
a. : a propositional function in logic
b. : truth table |