👉 The term "engram" is used to describe a unit of measurement or quantity. In medical terms, it refers to the number of bacteria or other microorganisms present in a sample of bodily fluids or tissue. Engrams are also commonly used in diagnostic testing for various diseases and conditions. For example, engrams may be used to determine the presence or absence of certain pathogens, which is crucial for diagnosing illnesses such as tuberculosis (TB).