adj

• (computing) Describing a predictor.
• (medicine) Expressing the expected accuracy of a statistical measure or of a diagnostic test.

noun

• (grammar) A conditional statement that includes a prediction in the dependent clause (e.g. "if it rains, the game will be cancelled", "give her an inch and she'll take a mile.").
  "Also, as we have seen in the preceding chapter, predictive conditionals show a high degree of integration thanks to the patterns of verb forms which are characteristic for predictives and which normally do not mix freely with other, non-predictive forms."
• (statistics) Simulated data generated from a statistical model, based on the estimates for the real data.
  "However, the posterior predictives combine two sources of information: what we might term the structural effect of WIC participation as well as an unobserved correlation between the errors of the participation and outcome equations."