Monoaminergic is a term used to describe chemicals and pathways in the brain that involve monoamines such as dopamine, norepinephrine, and serotonin. There are several synonyms for monoaminergic, including monoamine neurotransmitter system, monoaminergic neurotransmitter system, and monoamine system. These terms refer to the same group of neurotransmitters that regulate mood, reward, and motivation. Additional synonyms include monoamine oxidase system, monoaminergic system, and monoamine metabolism. All of these terms are used to describe the same basic set of brain chemicals and processes that are crucial for regulating emotional and cognitive function, and play an important role in many psychiatric disorders.