ZETTA-
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(Redirected from Zetta)
'zetta-' (symbol 'Z') is an SI prefix in the SI (system of units) denoting 1021 or 1 000 000 000 000 000 000 000.
Adopted in 1991, it comes from the Latin ''septem'', meaning ''seven'', because it is equal to 10007.
A prefix of the same value, 'hepa-', was informally introduced a few years before the promulgation of zetta-. It was formed from the Greek ἑπτά, ''(hepta)'', also meaning ''seven''. It never received official sanction and is now obsolete.
★ SI prefix
★ Binary prefix
★ BIPM website
'zetta-' (symbol 'Z') is an SI prefix in the SI (system of units) denoting 1021 or 1 000 000 000 000 000 000 000.
Adopted in 1991, it comes from the Latin ''septem'', meaning ''seven'', because it is equal to 10007.
A prefix of the same value, 'hepa-', was informally introduced a few years before the promulgation of zetta-. It was formed from the Greek ἑπτά, ''(hepta)'', also meaning ''seven''. It never received official sanction and is now obsolete.
| Contents |
| See also |
| External link |
See also
★ SI prefix
★ Binary prefix
External link
★ BIPM website
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