Thin permeable layer
THE ANSWER IS
The answer is MEMBRANE.
Tap reveal when you’re ready—the letters stay hidden until then.
Why it fits
MEMBRANE is the 8-letter answer to “Thin permeable layer” in the December 24, 2024 Lexigo puzzle. Every answer must also trace a connected path across touching hexagons, with each word linking to its neighbors in the chain—so MEMBRANE both satisfies the clue and fits the day’s board.