Definition of "monoamine"

monoamine

/mɒnəʊˈeɪmiːn/

noun
plural monoamines
1. (chemistry, biochemistry) Any compound having a single amino functional group, especially a neurotransmitter.
  Quotations
  Dopamine and norepinephrine are so-called monoamines.
  1999, Matt Ridley, Genome, Harper Perennial, published 2004, page 167
  The first effective drugs used to treat clinical depression were compounds that act by enhancing the activity of chemicals known as monoamines in the brain.
  2001, Leslie Iversen, Drugs: A Very Short Introduction, Oxford, page 55