a. 有助健康的, 有疗效的, (喻)治病救人的

[医] 促进健康的

Sanatory \San"a*to*ry\, a. [LL. sanatorius, fr. L. sanare to
heal. See {Sanable}.]
Conducive to health; tending to cure; healing; curative;
sanative.

Sanatory ordinances for the protection of public
health, such as quarantine, fever hospitals, draining,
etc. --De Quincey.

Note: Sanatory and sanitary should not be confounded.
Sanatory signifies conducive to health, while sanitary
has the more general meaning of pertaining to health.