Definition of phalangium
1 plural phalangia \-jēə\ obsolete : a venomous spider
2 capitalized : a genus (the type of the family the Phalangiidae) of harvestmen
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 phalangium
New Latin, from Greek phalangion, a spider, from phalang-, phalanx phalanx
Seen and Heard
What made you want to look up phalangium? Please tell us where you read or heard it (including the quote, if possible).