GABAergic refers to substances or neurons that interact with or release gamma-aminobutyric acid (GABA), a neurotransmitter that inhibits central nervous system (CNS) activity. Synonyms for this term include GABAergic agent, GABAergic drug, and GABAergic neuron. Other related terms include GABA receptor agonist, GABA receptor antagonist, and GABA transporter. These terms are commonly used in the field of pharmacology and neuroscience to describe drugs or other substances that enhance or inhibit the activity of GABA, which is involved in a wide variety of processes including anxiety, depression, and sleep regulation. Understanding GABAergic function is essential for the development of medications that target these and other CNS disorders.