BORON

Chemical element, B (5)

Solution has appeared in 2 crosswords (0 across and 2 down):

• Quick crossword No 16,229 — 2022-05-12 23:00:16
  16D: Non-metalic chemical element, B (5)
• Quick crossword No 15,345 — 2019-07-12 23:00:40
  2D: Chemical element, B (5)