Source of penicillin.
The crossword clue "Source of penicillin." is answered by MOLD, a 4-letter entry. Used 9 times across 8 distinct years; most recently in 1981; first recorded in 1945. It appears in 1 publications in the xd corpus. Every figure on this page comes from the collection data itself, never from a guess.
The answer
MOLD
4 letters. See every clue for this answer on the MOLD answer page.
Used 9 times across 8 distinct years; most recently in 1981; first recorded in 1945. It appears in 1 publications in the xd corpus. Frequency and last-seen figures come from the xd crossword corpus only.
Other clues for MOLD
Every other clue in this collection answered by MOLD, most used first.
- Shape - used 36 times, most recently in 2026
- Gelatin shaper - used 34 times, most recently in 2026
- Jell-O shaper - used 18 times, most recently in 2026
- Foundry form - used 11 times, most recently in 2010
- Blue cheese feature - used 9 times, most recently in 2024
- Aspic shaper - used 8 times, most recently in 2026
- Penicillin source - used 8 times, most recently in 2018
- Fashion - used 7 times, most recently in 2026
- Growth on old bread - used 6 times, most recently in 2024
- Shape, as clay - used 6 times, most recently in 2024
Related clues
Clues in this collection of the same answer length that share a word with this clue, or match its answer pattern when no word is shared. Most used first.
- Poi source - TARO, used 178 times
- Roe source - SHAD, used 132 times
- Sugar source - CANE, used 126 times
- Sugar source - BEET, used 100 times
- Fiber source - BRAN, used 84 times
- Source - ROOT, used 81 times
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