====== Infant ====== An infant (from the Latin word infants, meaning "unable to speak" or "speechless") is the very young offspring of a human or animal. When applied to humans, the term is usually considered synonymous with baby or bairn (in Scottish English), but the latter is commonly applied to the young of any animal. When a human child learns to walk, the term [[toddler]] may be used instead. The term infant is typically applied to young [[child]]ren between the ages of 1 month and 12 months; however, definitions may vary between birth and 1 year of age, or even between birth and 2 years of age. see [[Pediatric neurosurgery]].