Z
Symbol for impedance

Zetabon
Dow's trade name for an acrylic acid copolymer coated aluminum tape

Zipper Tubing
Alpha's tradename for harnessing/jacketing material containing a zipper-track type closure. The zipper arrangement allows installation with no need to disconnect previously wired schemes for its installation. See Loc-Trac

Zytel®
DuPont's registered tradename for nylon resins