trachea

noun

Etymology: Etymology tree Proto-Indo-European *dʰreh₂gʰ- Proto-Indo-European *dʰréh₂gʰ-us Proto-Hellenic *tʰrākʰús Ancient Greek τρᾱχεῖᾰ (trākheîă)bor. Late Latin trāchīa Medieval Latin trāchēader. Middle English English trachea From late Middle English, from Medieval Latin trāchēa (“the windpipe”) (also borrowed as Late Latin trāchīa), from Ancient Greek τρᾱχεῖᾰ ᾰ̓ρτηρῐ́ᾱ (trākheîă ărtērĭ́ā, “windpipe, trachea”).

1. A thin-walled, cartilaginous tube connecting the larynx to the bronchi.
2. The xylem vessel.
3. One of the cuticle-lined primary tubes in the respiratory system of an insect, which extend throughout its body.