Knee bursae. Knee bursitis is inflammation of a bursa located near your knee joint. A bursa is a small fluid-filled, pad-like sac that reduces friction and cushions pressure points between your bones and the tendons and muscles near your joints. Each of your knees has 11 bursae.nee bursae. Knee bursitis is inflammation of a bursa located near your knee joint. A bursa is a small fluid-filled, pad-like sac that reduces friction and cushions pressure points between your bones and the tendons and muscles near your joints. Each of your knees has 11 bursae.
â¢ STRENUOUS (adjective). The adjective STRENUOUS has 2 senses: 1. characterized by or performed with much energy or force. 2. taxing to the utmost; testing powers of endurance. Familiarity information: STRENUOUS used as an adjective is rare.
routine noun [C or U]. âº a usual or âfixed way of doing things: the usual/âdaily routinea fixed/set routine The office's âfixed routine was disturbed by the large âorder. âº IT a âpart of a âcomputer âprogram that does a particular âoperation: She had learned how to âprogram a basic âcomputer routine.