trachea \tra"chea\, n.; pl. tracheae. nl.,from l. trachia,
   gr. trachei^a sc. ? windpipe, from ? rough, rugged: cf. f.
   trach'ee.
   1913 webster
   1. anat. the windpipe. see illust. of lung.
      1913 webster

   2. zool. one of the respiratory tubes of insects and
      arachnids.
      1913 webster

   3. bot. one of the large cells in woody tissue which have
      spiral, annular, or other markings, and are connected
      longitudinally so as to form continuous ducts.
      1913 webster
see also:
tracheae lung 

trachea
     n 1: membranous tube with cartilaginous rings that conveys
          inhaled air from the larynx to the bronchi syn: windpipe
     2: one of the tubules forming the respiratory system of most
        insects and many arachnids
     also: tracheae pl
see also:
windpipe tracheae 

tracheae
     see trachea
see also:
trachea