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.
Health benefits of the lean meat and poultry, fish, eggs, tofu, nuts and seeds, and legume / beans group Lean red meat provides a very good source of nutrients, however consumption of greater than 100/120g per day of red meat, which is more than double the recommended amount, is associated with an increased risk of colorectal cancer and renal cancer.