What does nanoscale mean?
Nanoscale is a technical term describing sizes, structures, or technologies operating at the level of nanometres, or billionths of a metre. It is commonly used before nouns such as technology, materials, imaging, manufacturing, and fabrication: nanoscale engineering, for example, concerns the design and production of structures measured in nanometres. The word also has a specialized noun use, particularly in the expression "at the nanoscale," meaning that a phenomenon is being considered at nanometre-level dimensions. Its use often implies sophistication and precision rather than merely small size, because nanoscale structures can exhibit behaviours that differ from those of the same materials in bulk. Researchers use the term across physics, chemistry, biology, medicine, and engineering. In general discussion, "nanoscale" is more precise than "tiny" but less precise than specifying an exact measurement.
Relating to dimensions, structures, or phenomena measured in nanometres.
"The material's nanoscale structure gives it unusual strength."
Usually attributive and especially common in scientific and technical contexts.
The scale of size or technological application associated with nanometre-level dimensions.
"Researchers are able to observe how the surface changes at the nanoscale."
A specialized nominal use, normally appearing in the expression "at the nanoscale"; it is generally treated as singular.
The prefix nano- transforms the familiar idea of something tiny into a scale measured in billionths of a metre.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does nanoscale come from?
The word combines the scientific prefix nano-, meaning one-billionth and derived from Greek nanos, meaning "dwarf," with scale, denoting a degree of size or measurement. The combined term became established in the late 20th century alongside the development of nanotechnology. Nanometer, nanosecond, and nanotechnology share the same nano- element, though they refer respectively to a unit of length, a unit of time, and a field of applied science.
How nanoscale is actually used
Most often used as an attributive adjective before words such as technology, materials, imaging, and fabrication. The noun use, as in "at the nanoscale," is specialized and does not normally take a plural in ordinary usage.
Easily confused with nanoscale
A nanometer is a unit of length equal to one billionth of a metre, whereas the nanoscale describes dimensions or a range of sizes measured in nanometres.