(mathematics) any number such that a given square matrix minus that number times the identity matrix has a zero determinant

(mathematics) any number such that a given square matrix minus that number times the identity matrix has a zero determinant

(mathematics) a rectangular array of quantities or expressions set out by rows and columns; treated as a single element and manipulated according to rules

the body substance in which tissue cells are embedded

the formative tissue at the base of a nail

an enclosure within which something originates or develops (from the Latin for womb)

a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation