Noun chemistry has 2 senses
  1. chemistry, chemical science - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
    --1 is a kind of natural science
    --1 has particulars:
     immunochemistry, chemoimmunology; organic chemistry; inorganic chemistry; physical chemistry; electrochemistry; femtochemistry; geochemistry; photochemistry; radiochemistry, nuclear chemistry
  2. chemistry, interpersonal chemistry, alchemy - the way two individuals relate to each other; "their chemistry was wrong from the beginning
    --2 is a kind of social relation