NITROGEN

Main element of air (8)

Solution has appeared in 2 crosswords (1 across and 1 down):

• Quick crossword No 16,163 — 2022-02-25 00:00:01
  10A: Gaseous element (8)
• Quick crossword No 15,231 — 2019-03-02 00:00:19
  5D: Main element of air (8)