# grade

> tangent of the angle of a surface to the horizontal

**Wikidata**: [Q1139344](https://www.wikidata.org/wiki/Q1139344)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Grade_(slope))  
**Source**: https://4ort.xyz/entity/grade-q1139344


## References

1. YSO-Wikidata mapping project. 2023
2. BabelNet
3. GF WordNet