Numerical prefix with oxide (4 letters) — Crossword Helper

Enter a clue or pattern or both:

The Clue

Numerical prefix with oxide (4 letter answer)

The Answer

TETR

Tags

comb form four fourfront half having numerical oct oxide part prefix tetr

Notes

The answer TETR is rarely seen, appearing only about once every 1200 puzzles.

Related Clues

Fourfront?
Four: Prefix
Half of oct-
Four: Comb. form
Having four parts: Prefix