hydrogen line

Hello, you have come here looking for the meaning of the word hydrogen line. In DICTIOUS you will not only get to know all the dictionary meanings for the word hydrogen line, but we will also tell you about its etymology, its characteristics and you will know how to say hydrogen line in singular and plural. Everything you need to know about the word hydrogen line you have here. The definition of the word hydrogen line will help you to be more precise and correct when speaking or writing your texts. Knowing the definition ofhydrogen line, as well as those of other words, enriches your vocabulary and provides you with more and better linguistic resources.

English

English Wikipedia has an article on:
Wikipedia

Noun

hydrogen line (plural hydrogen lines)

  1. (physics, astronomy) a spectral line of atomic hydrogen having a wavelength of about 21cm; used extensively in radio astronomy