cepheid

ce phe id |ˈsēfēəd, ˈsef- ˈsifiəd |(also cepheid variable ) ▶noun Astronomy a variable star having a regular cycle of brightness with a frequency related to its luminosity, so allowing estimation of its distance from the earth. ORIGIN early 20th cent.: from the name of the variable star Delta Cephei, which typifies this class of stars.

cepheid

cepheid |ˈsiːfɪɪd, ˈsɛ - |(also cepheid variable ) ▶noun Astronomy a variable star having a regular cycle of brightness with a frequency related to its luminosity, so allowing estimation of its distance from the earth. ORIGIN early 20th cent.: from the name of the variable star Delta Cephei, which typifies this class of stars.