Definition of chemistry noun from the Oxford Advanced Learner's Dictionary



; ˈkemɪstri
1 the scientific study of the structure of substances, how they react when combined or in contact with one another, and how they behave under different conditionsa degree in chemistrythe university's chemistry departmentinorganic/organic chemistry see also biochemistry2 (technical) the chemical structure and behaviour of a particular substancethe chemistry of copperWe do not fully understand the chemistry of genes.The patient's blood chemistry was monitored regularly.3 the relationship between two people, usually a strong sexual attractionsexual chemistryThe chemistry just wasn't right.