tra ‧ che ‧ a /trəˈkiːə $ ˈtreɪkiə/ BrE AmE noun ( plural tracheas or tracheae /-ˈkiː-i $ -ki-iː/) [countable]
[ Date: 1300-1400 ; Language: Medieval Latin ; Origin: Greek tracheia (arteria) 'rough (artery)' , from trachys 'rough' ]
technical the tube that takes air from your throat to your lungs