"Normal interval" is a term often used in medical settings to describe a range of values or measurements that are considered to be within the typical or healthy range for a particular test or parameter. Synonyms for this term include "reference range", "normal range", "healthy range", "standard range", and "physiological range". These terms all refer to the same concept of a range of values that are considered to be within the expected or desirable range for a particular test or measurement. Using synonyms for "normal interval" can help to convey the same meaning in different words, making it easier for both healthcare professionals and patients to understand the results of medical tests.