矮行星 ǎixíngxīng dwarf planet Origin Definitions Defs Strokes Stroke Words Sentences Sents 矮 ǎi adjective short short in height; low to the ground行星 xíngxīng noun planet A celestial body that orbits a star, has enough mass to form a spherical shape, and has cleared its orbital path of other debris. Planets do not emit their own light but reflect the light of the star they orbit. Also known as 惑星 huòxīng.