Prepare for the MCAT Psychological, Social, and Biological Foundations of Behavior Test. Study with flashcards and multiple choice questions with hints and explanations. Get ready for your exam!

An ecclesia refers to a dominant religious organization that is recognized as the official or national religion within a society. It typically has a formal relationship with the state and is often integrated into the cultural and political structure of that society. Ecclesiae usually have a large membership, as they encompass the vast majority of the population and play a significant role in shaping social norms and values.

This concept contrasts with smaller and more exclusive religious groups like sects or cults, which tend to be less integrated into the mainstream culture and do not hold the same level of societal or political influence. By being an established institution, an ecclesia often enjoys certain privileges and responsibilities within the context of governance and societal structure, further solidifying its role as a dominant religious organization.