Definitions

1. adjective

relating to or moving in an ellipse, especially the apparent path of the sun, moon, or a planet through the sky.

“The astronomer studied the ecliptical path of the planet Mars.”

2. noun

an orbit or path that is elliptical, especially the apparent path of the sun, moon, or a planet through the sky.

“The astronomer tracked the ecliptical of the comet in the night sky.”