WordWeb Online

1. Of or pertaining to equipment or methods used to sustain life
   "the astronauts relied on their life-support systems"

1. Equipment that makes life possible in otherwise deadly environmental conditions
   - life-support system
    
2. Medical equipment that assists or replaces important bodily functions and so enables a patient to live who otherwise might not survive
   "the patient is on life support";
   - life-support system

Derived forms: life supports

Type of: equipment

Encyclopedia: Life-support