preterm

This term is primarily used in medical and clinical settings to describe births that occur before the standard 37-week mark of gestation. It carries a neutral, technical connotation, focusing on the chronological timing of birth rather than the health status of the infant, though it often implies a need for specialized neonatal care.

When used as a noun, the word functions as a collective or a category of patients. It is important to note that while it can refer to an individual child, it is frequently used in a non-count sense to describe the general population of premature infants within a medical context, such as in the phrase "care of the preterm."