eustachian : Idioms & Phrases
Eustachian catheter
- a tubular instrument to be introduced into the Eustachian tube so as to allow of inflation of the middle ear through the nose or mouth.
Webster 1913
eustachian tube
-
noun either of the paired tubes connecting the middle ears to the nasopharynx; equalizes air pressure on the two sides of the eardrum
auditory tube.
WordNet
Eustachian valve
(Anat.) , a crescent-shaped fold of the lining membrane of the heart at the entrance of the vena cava inferior. It directs the blood towards the left auricle in the fetus, but is rudimentary and functionless in the adult.
Webster 1913
Eustrachian tube
(Anat.) , a passage from the tympanum of the ear to the pharynx. SeeEar .