Encephalon and Low spirits

Encephalon noun - That part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord.

Low spirits and encephalon are semantically related. In some cases you can use "Low spirits" instead a noun "Encephalon".

Low spirits noun - A state of mild depression.

Encephalon and low spirits are semantically related. Sometimes you can use "Encephalon" instead a noun phrase "Low spirits".