Enter a clue or pattern or both:
The Clue
Filament material (8 letter answer)
The Answer
TUNGSTEN
Tags
Notes
The answer TUNGSTEN is so rare that it appears less than once every 2500 puzzles.
Related Clues
At. no. 74
Definition
TUNGSTEN as a noun:
1. (tungsten, wolfram, W, atomic number 74) = a heavy grey-white metallic element; the pure form is used mainly in electrical applications; it is found in several ores including wolframite and scheelite