(mathematics) a rectangular array of quantities or expressions set out by rows and columns; treated as a single element and manipulated according to rules
列と行で成る表現と数の長方形の配列
matrix
(geology) amass of fine-grained rock in which fossils, crystals, or gems are embedded
化石、水晶あるいは宝石が埋め込まれている、きめの細かい岩に集まる
matrix
an enclosure within which something originates or develops (from the Latin for womb)