Endotracheal refers to the tube itself and its placement in the windpipe.
Intubation refers to the process of inserting a tube into the airway, which can involve different types of tubes, including endotracheal tubes.
Endotracheal intubation is also referred to as intubation. Endotracheal intubation is a medical procedure in which a flexible plastic tube, called an endotracheal tube, is inserted into the oral or nasal cavity and then into the airway (trachea) to provide positive pressure ventilation.