| 释义 |
cepheid/ˈsi:fiid, ˈse-/n. (in full 全称 cepheid variable) Astron. a variable star having a regular cycle of brightness with a frequency related to its luminosity, so allowing estimation of its distance 【天】造父变星 [from the name of the variable star Delta Cephei, which typifies this class of stars] |