zs
Definition from Wiktionary, the free dictionary
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Translingual [edit]
Symbol [edit]
zs
- (metrology) Symbol for the zeptosecond, an SI unit of time equal to 10−21 seconds.
English [edit]
Noun [edit]
zs (plural only)
- (slang, in cartoons) sleep
- It's getting late: it's time to catch some zs.