What does H2 stand for?

H2 stands for "Histamine 2"

How to abbreviate "Histamine 2"?

"Histamine 2" can be abbreviated as H2

What is the meaning of H2 abbreviation?

The meaning of H2 abbreviation is "Histamine 2"

What does H2 mean?

H2 as abbreviation means "Histamine 2"