Lysin is a 5 letter English word. It's valid Scrabble word worth 8 points. It's valid Words with friends word worth 9 points.
You can make 44 anagrams from letters in lysin (ilnsy).
First recorded in 1895-1900; lys- + -in2
The difference is often greater when using weaker solutions than when using stronger dilutions of lysin.
By adding another fractional protein, lysin, the rats were made to thrive.