life-sustaining

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

performing an essential function in the living body
- vital organs
- blood and other vital fluids
- the loss of vital heat in shock
- a vital spot
- life-giving love and praise
• Syn:
vital
• Similar to:
essential
• Derivationally related forms:
vitalness (for: vital), vitality (for: vital)