An infant is a baby. When you were an infant, you weren't able to walk, talk, or feed yourself (but you had a pretty mean burp).

Infant is most often used for a very young human, but you can also use it to talk about animal babies. People are considered infants from the moment of birth until approximately one year old, an age when many babies are starting to walk and talk. At this point, they're commonly called toddlers instead of infants. The Latin root is infantem, which as a noun means "babe in arms," and as an adjective "unable to speak."

Definitions of infant

n a very young child (birth to 1 year) who has not yet begun to walk or talk

babe, baby
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blue baby
an infant born with a bluish color; usually has a defective heart
a sweet innocent baby
abandoned infant, foundling
a child who has been abandoned and whose parents are unknown
an infant who is sponsored by an adult (the godparent) at baptism
neonate, newborn, newborn baby, newborn infant
a baby from birth to four weeks
nurseling, nursling, suckling
an infant considered in relation to its nurse
papoose, pappoose
an American Indian infant
test-tube baby
a baby conceived by fertilization that occurs outside the mother's body; the woman's ova are removed and mixed with sperm in a culture medium - if fertilization occurs the blastocyte is implanted in the woman's uterus
war baby
conceived or born during war
a female godchild
a male godchild
liveborn infant
infant who shows signs of life after birth
low-birth-weight baby, low-birth-weight infant
an infant born weighing less than 5.5 pounds (2500 grams) regardless of gestational age
postmature infant
infant born after 42 weeks of gestation; usually shows signs of placental insufficiency
preemie, premature baby, premature infant, premie, preterm baby, preterm infant
an infant that is born prior to 37 weeks of gestation
SGA infant, small-for-gestational-age infant
an infant whose size and weight are considerably less than the average for babies of the same age
stillborn infant
infant who shows no signs of life after birth
term infant
infant born at a gestational age between 37 and 42 completed weeks
Type of:
child, kid
a human offspring (son or daughter) of any age

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