¦ noun
1. an instance of buying or selling.
the action of conducting business.
2. an exchange or interaction between people.
3. (transactions) published reports of proceedings at the meetings of a learned society.
4. an input message to a computer system dealt with as a single unit of work.
Derivatives
transact verb
transactional adjective
transactionally adverb
transactor noun
Origin
ME (as a term in Roman Law): from late L. transactio(n-), from transigere 'drive through'.