Babbling p. pr. & vb. n. : of Babble

Example:
How does baby Babbling differ between languages?

Taxonomy
babies, ba-ba-ba, infants, stage, language, juice, vocalizations, Human babies, free encyclopedia, human infants, toddlers, sentences, throat, first year, noises, syllables, ba, consonants.

Defination from the web:
Babbling (also called baby talk or twaddling) is a stage in child and a state in language acquisition, during which an infant appears to be ... Babbling begins at approximately 5 to 7 months of age, when a baby's noises begin to sound like phonemes. ...