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Definition 2024

Zm

Zm

See also: zm, ZM, and .zm

Translingual

Symbol

Zm

(metrology) Symbol for the zettameter (zettametre), an SI unit of length equal to 10²¹ meters (metres).

zm

zm

See also: ZM, Zm, and .zm

Translingual

Symbol

zm

(metrology) Symbol for the zeptometer (zeptometre), an SI unit of length equal to 10⁻²¹ meters (metres).