blood-brain-barrier
biol. A network of blood vessels and tissue that is made up of closely spaced cells and helps keep harmful substances from reaching the brain. The blood-brain barrier lets some […]
Blu-ray DVD
phys. An optical disk used to store digital information such as high-definition video, and able to store more information than a standard DVD. (blu, a respelling of blue, from the […]
Blu-ray DVD player
phys. A stand-alone electronic device capable of reading a Blu-ray disc and decoding the recorded data to produce an audiovisual stream that can be played back on a video monitor. […]
blue whale
biol. The largest animal ever to have lived on earth, weighing about 150 tons and measuring up to 100 feet long; it has remarkable speed and agility for its size […]