The rare daily word game sweeping the globe. Find what's hidden in plain sight.
AEQUORIN
Definition of AEQUORIN
noun
A photoprotein, isolated from luminescent jellyfish and other marine organisms, composed of two distinct units: the apoprotein apoaequorin and the prosthetic group coelenterazine.
Wiktionary · CC BY-SA
Where it comes from
Aequorea + -in
Etymology via Wiktionary (CC BY-SA).
Word DNA
How it is built
Same root, AEQUORIN · 1 relative in the game
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
AEQUORIN in OUTLIER
Players have found it on 10 boards so far. 17 players have found it across Outlier's history.
It first turned up on Day 52, 11 July 2026. The most recent board was Day 126, 23 September 2026. Nobody has seen it on a board for 21 days.
First ever to find it
on Day 52, 11 July 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
AEQUORIN starts with A and ends with N. Sorted, its letters read AEINOQRU - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram. It uses Q - among the least common letters in written English.
Also seen on Day 52
Could you have found AEQUORIN?
OUTLIER is a daily word game. One grid, the same grid for everybody, and the words nobody else spots are the ones that pay. This word was on Day 52 - and most players walked straight past it.
Play today's OUTLIER