The phrase "important validation" means that something is being confirmed or proven to be true, and this confirmation is significant or has significance. Full definition
However there is an even more important validation procedure for climate models; i.e., run them backwards to estimate past climate characteristics from those of the current time. (sjsu.edu)
But in the thorough and convincing rebuttal of the last contrary arguments, we have just witnessed a historically important validation of the scientific evidence for human causation of climate warming. (livescience.com)
«HealthKick recognition was an important validation of our technology and business model,» said Dr. Don Stewart, PlantForm President and CEO. (marsdd.com)