"Tetrachord" validity in different word game dictionaries
| Dictionary | Validity |
|---|---|
| Scrabble US(US/Canada/Thailand - TWL/NWL) | Yes |
| Scrabble UK(International - SOWPODS/CSW) | Yes |
| Words with Friends(WWF) | Yes |
"tetrachord" Definition
- a diatonic series of four tones with an interval of a perfect fourth between the first and last