Bose-Einstein condensate
A Bose-Einstein condensate is a state of matter in which ultracold bosons (particles with integer spin) are nearly motionless and superimposed in a single quantum state, revealing quantum mechanical effects at the macroscopic level.
Burr
In forming technology, the burr is the part of the component flowing over the edge of the engraving as excess material after the die has been filled. In most cases, this is subsequently removed by machining.