Cepheid variable

Etymology
From, the first such star identified. From, the name of the in which such stars were first discovered. From being a star with variable brightness.

Noun

 * 1)  A radially pulsating (expanding and contracting) variable star with a regular period and known relationship between period and intrinsic brightness.

Translations

 * French:
 * Irish: réalta athraitheach Ceifide
 * Spanish: estrella variable Cefeida