Also found in: Encyclopedia, Wikipedia.


 (sē′fē-ĭd, sĕf′ē-)
Any of a class of intrinsically variable stars with exceptionally regular periods of light pulsation.

[From Cepheus.]


(ˈsɛphiːɪd) astronomy
a type of variable star with a regular cycle of variations in luminosity
relating to or resembling a variable star with a regular cycle of variations in luminosity
References in periodicals archive ?
NGC 3972 also contains many pulsating stars called Cepheid variables.
Molecular diagnostics company Cepheid revealed on Tuesday the receipt of US Food and Drug Administration (FDA) 510(k) clearance and Clinical Laboratory Improvement Amendments (CLIA) waiver for the Xpert Xpress Flu test for the detection of multiple segments of RNA.
This assay is the first in a series of tests from Cepheid that will deliver results in 30 minutes or less.
NYSE: DHR) has closed the acquisition of Sunnyvale, California-based molecular diagnostics company Cepheid (NASDAQ: CPHD) for USD 53.
International Resource News-November 7, 2016--Danaher completes acquisition of Cepheid
Cepheid is a global molecular diagnostics company that develops, manufactures, and markets molecular systems and tests.
The length of this cycle is related to the luminosity of the Cepheid, so if astronomers monitor them they can establish how bright the star really is, compare it with what we see from Earth, and work out its distance.
Fernie of David Dunlap Observatory, [states] that a very well-known Cepheid variable star, RU Camelopardalis, has recently ceased to pulsate and now appears to be practically constant in brightness
Whitelock have found a number of Cepheid variables in a direction about opposite to the Galactic Centre (Nature on-line 14 May 2014).
Scientists have known since the early 20th century that the familiar star was part of a pulsating class known as Cepheid variables; its variations were suspected as early as the mid-1800s.
BANKING AND CREDIT NEWS-February 5, 2014--Morgan Stanley, Jefferies to be initial purchasers of Cepheid notes offering
Cepheid variables--giant stars that pulse in brightness--long have been used as reference points for measuring distances in the nearby universe.