1 subject of study
ADJ. analytical, applied, theoretical | environmental, physical | industrial | inorganic, organic
CHEMISTRY + NOUN set For her twelfth birthday, she asked for a chemistry set. > Note at SUBJECT(for verbs and nouns)
2 chemical structure of substance
ADJ. blood, soil, water, etc. | body natural changes in body chemistry
3 personal feelings/attraction
ADJ. personal | sexual
PREP. ~ between The personal chemistry between the two stars of the film is obvious.