Standard Lemma guide

zettametre

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

An SI unit of length equal to 1021 metres. Symbol: Zm

Definition source: English Wiktionary via Wiktextract

Topics: metrology

Examples

  • Holonyms: yottametre < ronnametre < quettametre
  • Meronyms: picometre < nanometre < micrometre < millimetre < centimetre < decimetre < metre < kilometre < megametre < gigametre < terametre < petametre < exametre

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From zetta- + metre.

Across languages

Translations

1 source translations are retained for this English entry.

  • French: zettamètre — 10^21 metres