Definition of digamma
1 : a letter of the original Greek alphabet representing a sound approximately that of English w which early fell into disuse except in writing the western dialects and in numerical notation where it represented the number 6 —called also vau —symbol F, ϝ
2 : the sound represented by the letter ϝ
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of digamma
Latin, from Greek, from di- + gamma; from its resemblance to two capital gammas placed on top of each other
Seen and Heard
What made you want to look up digamma? Please tell us where you read or heard it (including the quote, if possible).