brass rat
The MIT class ring, often the color of brass (it's actually gold) and featuring the MIT mascot, the beaver.
course
Refers to an organized curriculum leading to a specific degree (i.e. what is usually called a "major" at other institutions). The lowercase word "course" refers to a specific subject or class.
DSpace
Institutional repository for MIT's digital research materials including an increasing number of conference papers, images, peer-reviewed scholarly articles, preprints, technical reports, theses, working papers, and more.
hack
An ingenious but harmless joke, often in the form of a temporary installation such as a police car on top of the Great Dome. See the Hack Gallery for examples.
Infinite Corridor
The long hallway forming the spine of the central campus, including all or part of Buildings 7, 3, 10, 4 and 8.
Stellar
An online course management system for posting course materials on the web.
subject
A specific class.