vital

Từ điển American Heritage Dictionary 4th

vi·tal (vītʹl)adj.
1. Of, relating to, or characteristic of life: See Synonyms at living.
2. Necessary to the continuation of life; life-sustaining:
a vital organ; vital nutrients.
3. Full of life; animated: “The population of the teeming, vital slum... declined” (Rick Hampson).
4. Imparting life or animation; invigorating:
the sun's vital rays.
5. Necessary to continued existence or effectiveness; essential: “Irrigation was vital to early civilization” (William H. McNeill). “A vital component of any democracy is a free labor movement” (Bayard Rustin).
6. Concerned with or recording data pertinent to lives:
vital records.
7. Biology. Used or done on a living cell or tissue:
vital dyes; vital staining.
8. Destructive to life; fatal:
a vital injury. [Middle English, from Old French, from Latin vītālis, from vīta, life. See gʷei- in Indo-European Roots.] viʹtal·ly adv.viʹtal·ness n.

• Từ đồng nghĩa / Synonyms:
  full of life, lively, life-sustaining, critical