The Collaborative International Dictionary of English v.0.48:
Maturative \Mat"u*ra*tive\, a. [Cf. F. maturatif.] Conducing to ripeness or maturity; hence, conducing to suppuration. [1913 Webster]The Collaborative International Dictionary of English v.0.48:
Maturative \Mat"u*ra*tive\, n. (Med.) A remedy promoting maturation; a maturant. [1913 Webster]