| Z-7-dodecen-1-yl acetate | <cell biology, chemical> This chemical acts as a mating-signaling pheromone in a wide variety of insects and in elephants, although it is produced in conjunction with other chemicals so that the different species do not respond to each others signals. (11 May 1997) |
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| Z-DNA | <molecular biology> A form of DNA, or a region of DNA, in which the helix is flipped into a lefthanded helix, characterised by alternating purines and pyrimidines. This region is thought to be the target of a DNA-binding protein. (20 Jun 2000) |
| z-pinch | <radiobiology> Pinch device in which the externally-driven pinching current goes in the z direction (parallel to / through the cylindrical plasma). (09 Oct 1997) |
| Z-plasty | Surgery to elongate a contracted scar or to rotate tension 90 |
| Z-protein | A fatty acid-binding protein that participates in the intracellular movement of fatty acids. Synonym: fatty acid binding protein. (05 Mar 2000) |
| Z-tract injection | A technique in which the skin and subcutaneous tissue are displaced laterally before inserting the needle intramuscularly; used to prevent leakage along the track of the needle and consequent tissue irritation. (05 Mar 2000) |