2. something that holds up progress, esp of a manufacturing process. 3. (Pop Music) music. a. the broken-off neck of a bottle placed over a finger and used to produce a buzzing effect in a style of guitar-playing originally part of the American blues tradition. b. the style of guitar playing using a bottleneck.
How long does it take to become a marine biologist? Marine biologists must complete at least a bachelorâs degree, which takes about four years. Marine biologists who pursue masterâs degrees may take an additional two to three years to complete their education, and earning a PhD will take up to six years more.
How Long Is Basic Training in the Marines? The United States Marine Corps is known as America's first line of defense. To become a Marine, you must be at least 17 years old at the time of enlistment and hold a high school diploma. You must also complete 12 weeks of intense training.