"Sphaeridium" validity in different word game dictionaries
| Dictionary | Validity |
|---|---|
| Scrabble US(US/Canada/Thailand - TWL/NWL) | No |
| Scrabble UK(International - SOWPODS/CSW) | Yes |
| Words with Friends(WWF) | No |
"sphaeridium" Definition
- one of the small organs found on or buried in the test of all recent sea urchins except the Cidaroida suggesting statoliths in structure and possibly subserving a similar function