1. essential tremor tremor of unknown cause that develops in older people
  2. essential basic and fundamental
  3. essentiality basic importance
  4. essentialness basic importance
  5. unsatisfactory not giving satisfaction
  6. essential hypertension persistent and pathological high blood pressure for which no specific cause can be found
  7. essential condition a prerequisite
  8. benefactor a person who helps people or institutions
  9. olfactory of or relating to the sense of smell
  10. unsatisfactoriness the quality of being inadequate or unsuitable
  11. essential oil an oil having the odor or flavor of the plant from which it comes; used in perfume and flavorings
  12. satisfactory giving contentment
  13. scientific theory a theory that explains scientific observations
  14. steel factory a factory where steel is made
  15. Ascension of Christ (New Testament) the rising of the body of Jesus into heaven on the 40th day after his Resurrection
  16. essentially at bottom or by something's very nature
  17. unsatisfactorily in an unsatisfactory manner
  18. dissatisfactory not up to expectations
  19. scale factor a number used as a multiplier in scaling
  20. justificatory attempting to justify or defend in speech or writing