a shift toward longer wavelengths of the spectral lines emitted by a celestial object that is caused by the object moving away from the earth.
a shift in the lines of the spectrum of an astronomical object towards a longer wavelength (the red end of an optical spectrum), relative to the wavelength of these lines in the terrestrial spectrum, usually as a result of the Doppler effect caused by the recession of the object Compare blueshift
adjective 1. (of radiation) having undergone a redshift.
noun 1. a high-school or college athlete kept out of varsity competition for one year to develop skills and extend eligibility. verb (used with object) 2. to withdraw (an athlete) from varsity competition. redshirt
adjective, Metallurgy. 1. brittle when at red heat, as iron or steel containing too much sulfur.
verb (used without object) 1. to have a good or bad effect or result, as to the advantage or disadvantage of a person or thing. 2. to result or accrue, as to a person. 3. to come back or reflect upon a person as to honor or disgrace (usually followed by on or upon). verb […]