грудного

грудного

"Грудного" means "of the chest" or "breast" and can also refer to "infant" (as in "breastfeeding" or "nursing").

Used in an adjectival form to describe a baby who is breastfed.

Я купил молоко для грудного ребёнка.

I bought milk for the breastfed baby.

Used as an adjective to denote something relating to the thoracic (chest) region.

У меня болит грудного отдела позвоночника.

I have pain in the thoracic region of my spine.

Used in reference to the period of infancy or early childhood, derived from 'грудь' meaning 'chest' (breastfeeding stage).

Я помню запах леса осеннего утра с грудного возраста.

I remember the smell of an autumn morning forest from when I was an infant.