# Divergence

From ExoDictionary

**Divergence**

- The expansion or spreading out of a vector field; also a precise measure thereof.

*In mathematical discussion "divergence" is considered to include "convergence", i.e., negative divergence.* - A static instability of a lifting surface or of a body on a vehicle wherein the aerodynamic loads tending to deform the surface or body are greater than the elastic restoring forces.

## References

*This article is based on NASA's Dictionary of Technical Terms for Aerospace Use*