|
|
Definition of Hydrogen line
1. Noun. (physics astronomy) a spectral line of atomic hydrogen having a wavelength of about 21cm; used extensively in radio astronomy ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Hydrogen Line
Other Resources:
|
|
1. Noun. (physics astronomy) a spectral line of atomic hydrogen having a wavelength of about 21cm; used extensively in radio astronomy ¹
¹ Source: wiktionary.com