Meaning

• The degree to which two or more things diverge.

  "An angle is made by the divergence of straight lines."

• The operator which maps a function F=(F1, ... Fn) from a n-dimensional vector space to itself to the number \sum_{i=1}^n \frac{\partial F_i}{\partial x_i}

• Disagreement; difference

• The process in which two or more populations accumulate genetic changes (mutations) through time.