zeptometre

Z10E1P3T1O1M3E1T1R1E1

noun

An SI unit of length equal to 10⁻²¹ metres. Symbol: zm

“Meronym: yoctometre”

Scrabble 23
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Meanings

nounzeptometre (plural zeptometres)

plural zeptometres

  1. metrologyAn SI unit of length equal to 10⁻²¹ metres. Symbol: zm

    Meronym: yoctometre

    1 more example

    Holonyms: attometre < femtometre < picometre < nanometre < micrometre < millimetre < centimetre < decimetre < metre < kilometre < megametre < gigametre < terametre < petametre < exametre < zettametre < yottametre < ronnametre < quettametre

Origin

From zepto- + metre.

Full word history & related roots →
Cite this entry
APA

zeptometre. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/zeptometre

MLA

“zeptometre.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/zeptometre. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “zeptometre,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/zeptometre.

Source: zeptometre on Wiktionary, CC BY-SA 4.0.