IPA: /ˌɛndəʊˈtreɪkiəl/
KK: /ˌɛndəʊˈtreɪkiəl/
Relating to or occurring within the trachea, which is the tube that carries air to the lungs.
The doctor inserted an endotracheal tube to help the patient breathe during surgery.
Endotracheal → It is formed from "endo-" (meaning within) and "trachea" (from Greek "tracheia", meaning windpipe). The word "endotracheal" refers to something that is situated or occurring within the windpipe.
Think of 'endo-' meaning 'within' and 'trachea' referring to the windpipe — this helps you remember that 'endotracheal' relates to something inside the windpipe.