Definition of transportation for English Language Learners. : 1  the act or process of moving people or things from one place to another. : 2  a way of traveling from one place to another place. : 3  a system for moving passengers or goods from one place to another.
3,4-Methylenedioxymethamphetamine (MDMA), commonly known as ecstasy (E), is a psychoactive drug used primarily as a recreational drug. Desired effects include increased empathy, euphoria, and heightened sensations. When taken by mouth, effects begin after 30â45 minutes and last 3â6 hours.
MDEA (also MDE), which stands for 3,4-methylenedioxy-N -ethylamphetamine, is a psychedelic hallucinogenic drug and empathogen-entactogen of the phenethylamine family.It is chemically very similar to methylenedioxymethamphetamine (MDMA), the active chemical in the drug ecstasy.MDEA differs from MDMA in that it has one more carbon atom, and two more hydrogen atoms in the substituent on the nitrogen atom.The difference is evidenced in its name by the  ethyl  prefix, rather than the  methyl  prefix designating a single-carbon chain (see Alkanes).t is chemically very similar to methylenedioxymethamphetamine (MDMA), the active chemical in the drug ecstasy. MDEA differs from MDMA in that it has one more carbon atom, and two more hydrogen atoms in the substituent on the nitrogen atom.