Definition: Subglottally is a term used in medicine to refer to the process of the development of a child's vocal cords from an initial stage, during which they are developing into full-fledged voice. This process begins around 18-24 months after birth and continues until about two years old. In this phase, the vocal cords start to become stronger and more flexible, allowing them to vibrate more freely and produce a higher pitch when speaking. The child's voice then develops from a