Word.ws English Dictionary

femtogram

femtogram noun: an SI unit of mass equal to 10⁻¹⁵ grams. Symbol: fg.

Noun

femtogram (plural femtograms)

  1. An SI unit of mass equal to 10⁻¹⁵ grams. Symbol: fg

Forms of femtogram

pluralfemtograms
alternative UKfemtogramme

Origin of femtogram

From femto- + gram.

Questions about femtogram

What does femtogram mean?
Femtogram means an SI unit of mass equal to 10⁻¹⁵ grams. Symbol: fg.
What part of speech is femtogram?
Femtogram is a noun.
What is the plural of femtogram?
The plural of femtogram is femtograms.

Words near femtogram in the dictionary

  1. femtoelectronvolt
  2. femtoelectronvolts
  3. femtoengineering
  4. femtofarad
  5. femtofarads
  6. femtogram
  7. femtogramme
  8. femtogrammes
  9. femtograms
  10. femtohenries
  11. femtohenry

Source and license

Adapted from Wiktionary: femtogram (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “femtogram.” Word.ws, https://word.ws/femtogram. Based on Wiktionary, CC BY-SA 4.0.