(metrology) An SI unit of length equal to 10⁻¹⁵ metres. Symbol: fm
Used in a Sentence
femtometre
Definition, parts of speech, synonyms, and sentence examples for femtometre.
Editorial note
The force is very strong at 1 femtometre and pretty much negligible 3 femtometres away.
Examples5
Definitions1
Parts of speech1
Quick take
(metrology) An SI unit of length equal to 10⁻¹⁵ metres. Symbol: fm
Meaning at a glance
The clearest senses and uses of femtometre gathered in one view.
Definitions
Core meanings and parts of speech for femtometre.
noun
(metrology) An SI unit of length equal to 10⁻¹⁵ metres. Symbol: fm
See also: femtometer, fermi
Example sentences
The force is very strong at 1 femtometre and pretty much negligible 3 femtometres away.
A femtometre is roughly the diameter of a proton.
(also, a femtometre is really bloody small) [Edit: mixed up radius & diameter for the size of the observable universe.
You could come up with an approximation like "each gallon of jet fuel consumed raises the sea level by one femtometre"; each action is individually trivial, but combined they are not trivial.
Quote examples
You could come up with an approximation like "each gallon of jet fuel consumed raises the sea level by one femtometre"; each action is individually trivial, but combined they are not trivial.
Frequently asked questions
Short answers drawn from the clearest meanings and examples for this word.
How do you use femtometre in a sentence?
The force is very strong at 1 femtometre and pretty much negligible 3 femtometres away.
What does femtometre mean?
(metrology) An SI unit of length equal to 10⁻¹⁵ metres. Symbol: fm
What part of speech is femtometre?
femtometre is commonly used as noun.