Wordnet 3.0
NOUN (1)
1.
a catheter that is inserted into the trachea through the mouth or nose in order to maintain an open air passage or to deliver oxygen or to permit the suctioning of mucus or to prevent aspiration of the stomach contents;
WordNet (r) 3.0 (2006):
endotracheal tube
n 1: a catheter that is inserted into the trachea through the
mouth or nose in order to maintain an open air passage or
to deliver oxygen or to permit the suctioning of mucus or
to prevent aspiration of the stomach contents