Extremely small unit of length, used especially for measuring the wavelength of light, derived by dividing a meter by 10,000,000,000.
(Extremely small unit of length; used; especially for measuring the wavelength of light) (the wavelength of light; derived; by dividing a meter by 10,000,000,000)
Extremely small unit of length the wavelength of light
used derived
especially for measuring the wavelength of light
by dividing a meter by 10,000,000,000