Correlation :: Correlation (n.) Reciprocal relation; corresponding similarity or parallelism of relation or law; capacity of being converted into, or of giving place to, one another, under certain conditions; as, the correlation of forces, or of zymotic diseases..
Correlative :: Correlative (a.) Having or indicating a reciprocal relation.
Correlative :: Correlative (n.) One who, or that which, stands in a reciprocal relation, or is correlated, to some other person or thing..
Correlative :: Correlative (n.) The antecedent of a pronoun.