WordWeb Online

1. Causing to become stable
   "the family is one of the great stabilising elements in society";
   - stabilizing

1. Support or hold steady and make steadfast, with or as if with a brace
   "stabilise your elbows while working on the potter's wheel";
   - brace, steady, stabilize
    
2. Become stable or more stable
   "The economy stabilised";
   - stabilize
    
3. Make stable and keep from fluctuating or put into an equilibrium
   "The drug stabilised her blood pressure"; "stabilise prices";
   - stabilize

See also: helpful

Type of: alter, beef up, change, fortify, modify, strengthen

Antonym: destabilise [Brit]

Encyclopedia: Stabilising