Share this entry
dark line Syllabification: dark line

Definition of dark line in English:


A line in an absorption spectrum, appearing as a black line at visible wavelengths.
Example sentences
  • Look at the spectrum of light from a distant object and you will see characteristic bright and dark lines that appear similar to those from earthly material, except for one difference: the positions of the lines are shifted toward the red.
  • These missing wavelengths are characterized by dark lines in the spectrum.
  • In 1860 Bunsen and Kirchhoff observed dark lines in the spectrum of a light source passed though burning substances.
Definition of dark line in:
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Subscribe to remove ads and access premium resources