A multidisciplinary field that strives to comprehend the interactions of cellular components, molecular components and engineered materials at the nanoscale (i.e., less than 100 nanometers). This discipline focuses on the understanding and control of matter at the nanoscale, wherein unique phenomena enable novel applications.

Science involved with manufacturing or engineering one atom or molecule at a time with precise atomic specifications; concerned with materials and systems whose structures and components exhibit novel and significantly improved physical, chemical and biological properties, phenomena and processes because of their small nanoscale size; includes technology to generate and use nanostructures and nanodevices; do not index on projects simply observing and describing physical characteristics at the nanoscale level.

The development and use of techniques to study physical phenomena and construct structures in the nanoscale size range or smaller.

The field of research that deals with the engineering and creation of things from materials that are less than 100 nanometers (one-billionth of a meter) in size, especially single atoms or molecules. Nanotechnology is being studied in the detection, diagnosis, and treatment of cancer.