hygiology|haɪ-, hɪdʒiːˈɒlədʒɪ| Also hygie-, hygeology. [f.Gr. ὑγεία (see Hygeia) + -ology.] The science of health; hygiene. 1855Mayne Expos.Lex., Hygieologia..hygieology.1885Science 11 Dec. 512/2 The word ‘hygiology’ was a far better term than ‘sanitation’, or than ‘sanitary science’.