The clue "Petri dish substance" last appeared in the Wall Street Journal crossword on June 8, 2026. The correct answer for this puzzle is "AGAR", a 4-letter word.
Solution AGAR is 4 letters long. So far we haven´t got a solution of the same word length.
There is 1 solutions. The longest is AGAR with 4 letters, and the shortest is AGAR with 4 letters.
No, "PETRI DISH SUBSTANCE" hasn´t seen a spike right now. Solvers are most interested in: Spoil, permanent, Criticize, Enthusiastic and Complain.
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The solution is 4 letters long.