Floating elements : one or more elements in a lens which adjust position relative to other components during focusing or zooming. Used to maintain correction of lens aberrations at all settings.
Deoxyribonucleic Acid [DNA]
Deoxyribonucleic acid is a molecule that encodes the genetic instructions used in the development and functioning of all known living organisms and many viruses. DNA and RNA are nucleic acids; alongside proteins, they compose the three major macromolecules essential for all known forms of life.