Tra"che*a (?), n.; pl. Tracheae (#). [NL.,from L. trachia, Gr. trachei^a (sc. windpipe), from rough, rugged: cf. F. trach'ee.]

1. Anat.

The windpipe. See Illust. of Lung.

2. Zool.

One of the respiratory tubes of insects and arachnids.

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.

 

© Webster 1913.

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