瓴
líng

concave channels of tiling a long-necked jar

Senses

瓴 líng roof tile

(literary) concave roof tiles laid to form a channel for rainwater; also called a 瓦沟 wǎ​gōu

瓴 líng Ling

a Chinese surname

References

same_as 瓴/瓴 → 瓦沟/瓦溝
same_as 瓦沟/瓦溝 → 瓴/瓴