Active or effective in very small quantities, as certain germicides or heavy-metal toxins.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for oligodynamic
Historical Examples of oligodynamic
Miani attributes this favourable action to the mere presence of the copper, corroborating Ngelis idea of an oligodynamic action.Inorganic Plant Poisons and Stimulants
Winifred E. Brenchley