Enter a clue or pattern or both:

The Clue

Foreign instigators? (8 letter answer)

The Answer

ANTIGENS

Tags


Notes

The answer ANTIGENS is so rare that it appears less than once every 2500 puzzles.

Definition

ANTIGEN as a noun:

1. any substance (as a toxin or enzyme) that stimulates an immune response in the body (especially the production of antibodies)