‖ prophyˈlacticon Obs. rare—1.
[a. Gr. προϕυλακτικόν, neut. sing. of προϕυλακτικός: see prophylactic.]
= prophylactic n.
| 1716 M. Davies Athen. Brit. II. 354 The avow'd best Prophylacticons or Preservers of Health, be the moderate use of Medicinal Water-Drinking [etc.]. |