Meanings
nounquectogram (plural quectograms)
plural quectograms · alternative UK quectogramme
- metrologyAn SI unit of mass equal to 10⁻³⁰ grams. Symbol: qg
The arrival of the new prefixes means the Earth can now be said to weigh six ronnagrams, and Jupiter about two quettagrams. An electron weighs about a rontogram, and a single bit of data stored on a mobile phone adds about 10 quectograms to its mass.
2022 November 18, Ian Sample, “Earth weighs in at six ronnagrams as new prefixes picked for big and small”, in The Guardian
Origin
Cite this entry
APA
quectogram. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/quectogram
MLA
“quectogram.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/quectogram. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “quectogram,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/quectogram.
Source: quectogram on Wiktionary, CC BY-SA 4.0.