Enter a clue or pattern or both:
The Clue
Muscle: Comb. form (3 letter answer)
The Answer
EUS
Tags
Notes
The answer EUS is so rare that it appears less than once every 2500 puzzles.
Definition
EU as a noun:
1. (europium, Eu, atomic number 63) = a bivalent and trivalent metallic element of the rare earth group
2. (European Union, EU, European Community, EC, European Economic Community, EEC, Common Market, Europe) = an international organization of European countries formed after World War II to reduce trade barriers and increase cooperation among its members; "he took Britain into Europe"