*1 a : an [[arbitrary]] constant whose [[value]] characterizes a member of a [[system]] (as a [[family]] of curves); also : a [[quantity]] (as a mean or variance) that describes a statistical [[population]] | *1 a : an [[arbitrary]] constant whose [[value]] characterizes a member of a [[system]] (as a [[family]] of curves); also : a [[quantity]] (as a mean or variance) that describes a statistical [[population]] |