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.
1. Lean Red Meat. If you are trying to gain weight, enjoy some lean red meat. Steak contains a ton of protein and iron. But food experts warn that not all steak cuts are made equal. You want the fatty cuts where the meat is marbled.