Word.ws English Dictionary

hydrogen lines

hydrogen lines is the plural of hydrogen line.

Meaning of hydrogen line

Noun

hydrogen line (plural hydrogen lines)

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

Questions about hydrogen lines

What is hydrogen lines the plural of?
Hydrogen lines is the plural of hydrogen line.

Words near hydrogen lines in the dictionary

  1. hydrogen ion
  2. hydrogen ions
  3. hydrogen lamp
  4. hydrogen lamps
  5. hydrogen line
  6. hydrogen lines
  7. hydrogen maser atomic clock
  8. hydrogen maser atomic clocks
  9. hydrogen monoxide
  10. hydrogen nitrate
  11. hydrogen oxide

Source and license

Adapted from Wiktionary: hydrogen lines (page history and authors); hydrogen line (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “hydrogen lines.” Word.ws, https://word.ws/hydrogen_lines. Based on Wiktionary, CC BY-SA 4.0.