Hydroxytryptamine, also known as serotonin, is an important neurotransmitter in the body that is responsible for regulating various bodily functions. There are a few synonyms for the word hydroxytryptamine that can be useful for those who want to learn more about it. For instance, 5-HT is a common term used to refer to hydroxytryptamine. Other synonyms include enteramine, thurenin, and serotonin hydrochloride. These terms are commonly used in scientific literature and studies focused on the role of hydroxytryptamine in the body. Understanding these synonyms can help individuals expand their knowledge of this important neurotransmitter.