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attogram
This term is used exclusively within highly specialized scientific contexts, such as molecular biology, biochemistry, and nanotechnology. It describes masses so minute that they are typically only relevant when discussing individual large molecules or small clusters of atoms.
As a standard metric unit, it follows the pattern of SI prefixes where "atto-" denotes a factor of 10^-18. It is rarely encountered in general academic writing and is almost entirely restricted to technical research papers and laboratory data.
Meanings
Examples
The mass of a single large protein is often measured in the attogram range.
We need a scale sensitive enough to detect a single attogram of material.
One attogram is equal to ten to the power of minus eighteen grams.
Can this sensor actually resolve a difference of one attogram?
The researchers quantified the DNA sample in attograms to ensure precision.
It is hard to imagine something as light as an attogram.
The device can weigh particles with a mass of just a few attograms.