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tracer element
tracery
trachea
tracheid
tracheitis
tracheo-
tracheobronchial
tracheoesophageal
tracheole
tracheophyte
tracheoscopy
tracheostomy
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tracheole
tra·che·ole [ tráykee l ] (plural tra·che·oles)


noun 
Definition:
 
part of trachea: a fine channel that branches off from an insect's trachea and carries oxygen to its tissues
[Early 20th century. <trachea]
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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