a silver coin of ancient Greece, equal to four drachmas.
- Also tet·ra·drachm [te-truh-dram]. /ˈtɛ trəˌdræm/.
- tet·ra·drach·mal, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use tetradrachma in a sentence
The drachma is now known to have contained about 65 grains of pure silver, consequently the tetradrachma contained 260 grains.