Noah Webster's New International Dictionary of the English Language

1. (superl.) Being in a state of health; enjoying health; hale; sound; free from disease; as, a healthy child; a healthy plant.

2. (superl.) Evincing health; as, a healthy pulse; a healthy complexion.

3. (superl.) Conducive to health; wholesome; salubrious; salutary; as, a healthy exercise; a healthy climate.