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.
Expert answer. Wild game such as deer, elk and antelope tend to be very lean due to their active lifestyle and natural diet. Their meat, therefore, is lower in total and saturated fat than red meat. In addition, fat from wild game contains a higher proportion of polyunsaturated fatty acids.