The Deep Web: Also called the Deepnet, the Invisible Web, or the Undernet, this is World Wide Web content that is not part of the Surface Web, which is indexed by standard search engines.

Optogenetics: An emerging field in which researchers insert light-responsive proteins called opsins into cells. Researchers in many different areas are experimenting with using this tactic to control the bioelectric behavior of brain cells.

Wearable Technology: Fabrics or accessories that incorporate computer and advanced electronic technologies. Designs often incorporate practical functions and features, but they may also be purely aesthetic.