Webster’s Revised Unabridged Dictionary · 1913
Assimilative
As·sim′i·la·tive (ăs·sĭm′ĭ·lā·tĭv), a. [Cf. LL. assimilativus, F. assimilatif.] Tending to, or characterized by, assimilation; that assimilates or causes assimilation; as, an assimilative process or substance.