Longman Dictionary of Contemporary English - introduce

~ v 1 »WHEN PEOPLE MEET« if you introduce someone to another person, you formally tell them each other's names, for example at a party or meeting  ("Have you two been introduced? Tom, this is Greg." | introduce sb to sb)  (I was introduced to Mrs Myers. | introduce yourself (=formally tell someone who you are))  (Let me introduce myself; my name is Melody Johnson.) 2 »MAKE STH HAPPEN/EXIST« to make a change, plan, system etc happen or exist for the first time  (plans to introduce a new system of welfare payments | The teachers' association wanted to introduce a new kind of test.) 3 »BRING TO A PLACE« to take or bring something to a place for the first time from somewhere else  (introduce sth to/into)  (The grey squirrel was introduced into Britain from North America.) 4 »NEW EXPERIENCE« introduce sb to sth to show someone something or tell them about it for the first time  (Malcolm introduced me to the joys of wine-tasting.) 5 »TELEVISION/RADIO« to speak at the beginning of a TV or radio programme and say what is going to happen  (Tonight's programme will be introduced by James Adams.) 6 »BE THE START OF« if an event introduces a particular period or change, it is the beginning of it  (The death of Pericles in 429 BC introduced a darker period in Athenian history.) 7 »LAW« to formally present a new law to be discussed and voted on, especially in the British parliament 8 »PUT STH INTO« technical to put something carefully into something else  (Fuel was introduced into the jet pipe.)