- a silver coin of ancient Greece, equal to four drachmas.
Also tet·ra·drachm [te-truh-dram] /ˈtɛ trəˌdræm/.
Origin of tetradrachma
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for tetradrachma
The drachma is now known to have contained about 65 grains of pure silver, consequently the tetradrachma contained 260 grains.