A gyre is another name for a swirling vortex. Ocean gyres are large swirling bodies of water that are often on the scale of a whole ocean basin or 1000 s of kilometers across (hundreds to thousands of miles across).
Lean meats are meats with a relatively low fat content. Skinless chicken and turkey and red meat, such as pork chops, with the fat trimmed off are examples of lean meat.
Pork and Lamb. Pork, lamb and veal can also be healthy meat choices, if you use low-fat cuts. Choose pork tenderloin, the leanest cut of pork, and pork loin, which is generally lean with some surface fat that is easily removed before cooking. Because lamb and veal come from young animals, they tend to be leaner meats overall.