Other forms: introductorily
Something introductory prefaces or explains what comes after it. An introductory paragraph at the start of your essay will sum up the ideas you plan to discuss.
Introductory remarks before a speech will give some basic information about the speaker or her topic, and an introductory scene in a movie sets up the characters, time period, or setting so the story makes sense. This 17th century adjective is from the Latin word introductorius, from introducere, "to lead in," with its roots intro-, "inward," and ducere, "to lead."