Definition of infantes:
(n) :
A very young human being, from birth to somewhere between six months and two years of age after birth, needing almost constant care and attention.
(n) :
(law) A minor.
(n) :
(countable, chiefly UK, Ireland, Commonwealth) A student in an infant school or the first part of a primary school.
(adj) :
(not comparable, chiefly UK, Ireland, Commonwealth) Of or pertaining to the earlier half of primary school education.
(adj) :
(figurative, of a river) small, being near its source.
(n) :
(obsolete) A noble or aristocratic youth.