HYGIOLOGY
Source: 567
Hy′gi‐ol″o‐gy (?), n. [[Gr. � health + -logy.]] A treatise on, or the science of, the preservation of health.
Source: 567
Hy′gi‐ol″o‐gy (?), n. [[Gr. � health + -logy.]] A treatise on, or the science of, the preservation of health.