Enter a clue or pattern or both:
The Clue
Soprano roles in operas by Cherubini and Giordano (6 letter answer)
The Answer
ELISAS
Tags
Notes
The answer ELISAS is so rare that it appears less than once every 2500 puzzles.
Definition
ELISA as a noun:
1. (enzyme-linked-immunosorbent serologic assay, ELISA) = an assay that relies on an enzymatic conversion reaction and is used to detect the presence of specific substances (such as enzymes or viruses or antibodies or bacteria)