nebuly

Nebule is a alternative form of nebuly.

As an adjective nebuly

is edged in a deeply wavy line, intended to represent clouds.

As a noun nebule is

a little cloud.

As a noun nebula

is (astronomy) a cloud in outer space consisting of gas or dust (eg a cloud formed after a star explodes).

As an adjective nebuly is

(heraldry) edged in a deeply wavy line, intended to represent clouds.