In Tetrabiblos, what does Hyleg mean?
Hyleg In Hellenistic astrology, the hyleg is the Persian-Arabic term for the planet with the greatest essential dignity in five important natal chart positions (according to Ptolemy's "Tetrabiblos"):
Halohydrin In organic chemistry a halohydrin (also a haloalcohol or β-halo alcohol) is a functional group in which a halogen and a hydroxyl are bonded to adjacent carbon atoms, which otherwise bear only hydrogen or hydrocarbyl groups (e.g. 2-chloroethanol, 3-chloropropane-1,2-diol). The term only applies to saturated motifs, as such compounds like 2-chlorophenol would not normally be considered halohydrins. Megatons of some chlorohydrins, e.g. propylene chlorohydrin, are produced annually as precursors to polymers.