Definition of Nanotechnology

I like this definition from the 2011 Agriculture and Food Research Initiative (AFRI), Competitive Grants Program (USDA):

"Nanotechnology is defined by the National Nanotechnology Initiative (NNI) as '…the understanding and control of matter at dimensions between approximately 1 and 100 nanometers, where unique phenomena enable applications. Encompassing nanoscale science, engineering and technology, nanotechnology involves imaging, measuring, modeling and manipulating matter at this length scale.' (http://nano.gov/)"

I am surprised that thermal-fluid-surface interactions are not mentioned.