Stroke: a stroke occurs when there is a blocked (embolism) or ruptured (aneurysm/hemorrhage) blood vessel that supplies the brain, leading to severe and permanent damage to the tissues of the brain. A very severe stroke can cause brain death.
MCT: Marine Combat Training. All non-infantry Marines, upon completion of recruit training, will undergo Marine Combat Training (MCT). MCT consists of 29 days of battle skills training that enables Marines, regardless of MOS, to operate in a combat environment.
Marine boot camp is officially 12 weeks of training, plus 1 week of processing -- this isn't quite fair, as the training and discipline starts as soon as you step off the bus at Receiving. The first stop is at Recruit Receiving, where new recruits spend the first few days of their recruit training experience.