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 --
1. Fixation of the mind on one subject to the exclusion of all other thoughts.
2. An increase in the strength of a fluid by evaporation.
3. The amount of a substance in a mixture or solution expressed as weight or mass per unit volume.