What is the word for the phenomenon where a person's brain stops recognizing the initial smell of something?
For example – the initial smell of one's own "constitutional duty." That smell will be recognized by that person for only a moment or two.
The word is very specific to "smells." It is a word I learned, but forgot, in a hazardous materials training class. It is more of a scientific type word than a generic type word such as "adjust."