Parcel Select. Parcel Select is an economical choice for large or heavy packages and is the only USPS service that can be used for packages over 108 in girth. Cost is determined based on the distance, weight and dimensions of the mailpiece.
Definition of dopamine. : a monoamine C8H11NO2 that is a decarboxylated form of dopa and that occurs especially as a neurotransmitter in the brain.
Medical Dictionary. dopamine. play. noun doÂ·paÂ·mine \ËdÅ-pÉ-ËmÄn\. Medical Definition of dopamine. : a monoamine C8H11NO2 that is a decarboxylated form of dopa and occurs especially as a neurotransmitter in the brain and as an intermediate in the biosynthesis of epinephrineâsee intropin.