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c.1400, from Medieval Latin trachea (mid-13c.), as in trachea arteria, from Late Latin trachia (c.400), from Greek trakheia, in trakheia arteria "windpipe," literally "rough artery" (so called from the rings of cartilage that form the trachea), from fem. of trakhys "rough." See artery for connection with windpipe in Greek science.
trachea tra·che·a (trā'kē-ə)
n. pl. tra·che·as or tra·che·ae (-kē-ē')
The airway that extends from the larynx into the thorax where it divides into the right and left bronchi. It is composed of thin incomplete rings of hyaline cartilage connected by a membrane called the annular ligament. Also called windpipe.
Plural tracheae (trā'kē-ē') or tracheas