Nanoparticles also have different properties to the same substance in normal-sized pieces. For example, titanium dioxide is a white solid used in house paint and certain sweet-coated chocolates. Titanium dioxide nanoparticles are so small they do not reflect visible light, so cannot be seen.
legal Definition of cession 1: an act of ceding : a yielding (as of property) to another: as a in the civil law of Louisiana: assignment or transfer of property rights by a debtor to a creditor
Cede is often a formal term used in discussing territory and rights, but is also used less formally. So, for example, Spain ceded Puerto Rico to the U.S. in 1898, following the Spanish-American War, and the U.S. ceded control of the Panama Canal to Panama in 1999.