Phasic is a term that is commonly used in the field of biology and refers to a specific type of biological process or activity that occurs intermittently or in distinct phases. There are many synonyms for the word phasic that can be used to describe this type of process, including cyclical, periodic, rhythmic, pulsatile, and oscillatory. These terms all describe a pattern of activity that occurs in a cyclical or repetitive manner, often with distinct periods of activity and rest. Using these synonyms for phasic can help to provide a more accurate and detailed description of biological processes that occur in a cyclical or rhythmic manner.