- the science of calculating positions of the heavenly bodies on nativities.
Origin of genethlialogy
1650–60; < Greek genethliālogía casting of destinies, equivalent to genethliā- (combining form of genéthlē birth) + -logia -logy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for genethlialogy
Chaldee astrology, was not, however, limited to genethlialogy.