The classic case is ketchup which will not come out of the bottle until you stress it by shaking.There are also fluids whose strain rate is a function of time. Fluids that require a gradually increasing shear stress to maintain a constant strain rate are referred to as rheopectic.
acute appendicitis. See APPENDICITIS. aÂ·cute apÂ·penÂ·diÂ·ciÂ·tis. Inflammation of the appendix, usually resulting from bacterial infection, which may be precipitated by obstruction of the lumen by a fecalith; symptoms include periumbilical colicky pain, vomiting, among others.
Appendicitis is a condition where the appendix becomes swollen, inflamed, and filled with pus. The appendix is a small finger-shaped pouch on the right side of the abdomen, connected to the colon. The exact role of the appendix is not clear. It may be an area that hosts friendly bacteria, which help digestion and fight infection.