amino acid

an organic compound that contains an amino group (–NH₂) and a carboxyl group (–COOH). Twenty amino acids are constituents of proteins; nine of these are essential amino acids, that is, they cannot be synthesized by the body and must be obtained from foods. Other amino acids (e.g., glutamic acid, glycine) are neurotransmitters or precursors to neurotransmitters.

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Psychology term of the day

January 19th 2025

stigmatophilia

n. sexual interest in and arousal by a partner who is tattooed or has scars, or by having oneself tattooed, particularly in the genital area.