In common terminology, a baby is the very young offspring of adult human beings, while infant (from Latin īnfāns 'baby, child', literally 'unspeaking') [1] is a formal or specialised synonym. The terms may …

Jan 12, 2026 · Merriam-Webster defines an infant as "a child in the first period of life" but doesn't give any age specifics. It describes a baby as "an extremely young child."

Feb 20, 2026 · As a parent you give your children a good start in life—you nurture, protect, and guide them. Learn about developmental milestones, including emotional and social development, for …

May 10, 2026 · The meaning of INFANT is a child in the first period of life. How to use infant in a sentence.

Apr 30, 2026 · Learn about infant and toddler health, from baby care to how children develop.

Jun 11, 2025 · An infant is typically a child from birth to 12 months old. Some health professionals may define infancy as extending up to 18 months, especially when talking about development and early …

/ ˈɪn·fənt / Add to word list a baby (Definition of infant from the Cambridge Academic Content Dictionary © Cambridge University Press)

Infants are children between the ages of five and seven, who go to an infant school.

a human child from birth (see newborn infant) to the end of the first year of life. Emotional and physical needs at this time include love and security, a sense of trust, warmth and comfort, feeding, and …

Infant and toddler development, the physical, emotional, behavioral, and mental growth of children from ages 0 to 36 months. Different milestones characterize each stage of infant (0 to 12 months) and …