| ZO | used in some classifications: essentially equivalent to Potamogetonaceae |
|---|---|
| ZO | an oral antiviral drug (trade name Zovirax) used to treat genital herpes |
| ZO | any of several creeping grasses of the genus Zoysia |
| ZO | lawn grass common in China and Japan |
| ZO | lawn grass common in the Philippines |
| ZO | Asiatic creeping perennial grass |