👉 The term "interequinoctial" is a medical term used in obstetrics and gynecology. It refers to an abnormal pattern of fetal growth, characterized by rapid increase in fetal weight compared to normal growth rates. This may result from abnormalities in the placenta or in the fetus itself. Interquinoctial growth is often associated with conditions such as cleft palate, neural tube defects, and other genetic disorders.