What is the term that developmentalists use to describe the oo-ing, ah-ing and gurgling sounds that infants produce when they are 2 months old?

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The term that developmentalists use to describe the oo-ing, ah-ing and gurgling sounds that infants produce when they are 2 months old is cooing. This is typically the first vocalization that infants make and is an important milestone in their language development. Babbling usually comes later, around 6 months old. Telegraphic speech refers to a stage of language development where children use short, telegraphed phrases without grammatical structures. Gesturing refers to nonverbal communication through body language and movements.

What Is the Term That Developmentalists Use to Describe the Oo-Ing