Pronunciation: [smˈɛl bɹˈe͡ɪn] (IPA) 
The correct spelling of the word "smell brain" is actually "limbic system". This part of the brain plays a crucial role in emotion, motivation, and memory, particularly related to smells. The IPA transcription for the word "limbic" is /ˈlɪmbɪk/, with the stress on the first syllable. So, next time you hear someone use the term "smell brain", remember that the proper spelling is "limbic system".
There is no specific dictionary definition for the term "smell brain." It appears to be a relatively unknown or uncommon phrase that is not well-documented in mainstream dictionaries. However, it is possible to provide a contextual interpretation of the term based on its components.
The term "smell" refers to the sense associated with the detection and identification of odors or scents. It involves the nasal receptors capturing various molecules in the air and transmitting signals to the brain for interpretation.
On the other hand, the term "brain" refers to the complex organ in the central nervous system that coordinates and controls various bodily functions, including perception, cognition, and sensory processing.
Based on these definitions, "smell brain" could potentially refer to the part or area of the brain responsible for processing and interpreting smells. It may denote the specific region or network of neural connections involved in analyzing olfactory information and generating corresponding perceptions or responses.
However, it is important to note that without further context or references to existing scientific or medical terminology, the term "smell brain" remains relatively ambiguous and its precise meaning is uncertain.
Rhinencephalon.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
