歪度 is read as わいど (waido) and means skewness.
わいど
waido
いがむ
to warp
いびつ
oval coin
たいど
attitude (towards an issue, etc.)
いちど
temporarily
せいど
system
さいど
a second time
こんど
this time
ねんど
product year
ていど
degree
おんど
temperature
みつど
density
こうど
altitude