Nursing Central is the award-winning, complete mobile solution for nurses and students. Look up information on diseases, tests, and procedures; then consult the database with 5,000+ drugs or refer to 65,000+ dictionary terms. Explore these free sample topics:
-- The first section of this topic is shown below --
[L. ligandus, for binding, to be bound, fr. ligare, to tie, bind]
1. In chemistry, an organic molecule attached to a central metal ion by multiple bonds.
2. Any chemical that binds to a specific receptor site, e.g., on a cell membrane.
3. In immunology, a small molecule bound to another chemical group or molecule.