1. 扁率：oblate spherold 扁球体 | oblateness 扁率 | obligatory point 约束体
2. 扁率;扁圆形：oblate 扁圆形的 | oblateness 扁率;扁圆形 | Oblatinella 扁球粉属
3. 椭圆：Plane geometry 平面几何 | Oblateness 椭圆 | Parallelogram 平行四边形
4. 扁圆形：oblateness 扁率 | oblateness 扁圆形 | oblatenessspheroidicity 扁球形
noun
1. the property possessed by a round shape that is flattened at the poles
e.g. the oblateness of the planet
Synonym: ellipticity