In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream. Digestion is a form of catabolism that is often divided into two processes based on how food is broken down: mechanical and chemical digestion. The term mechanical digestion refers to the physical breakdown of large pieces of food into smaller pieces which can subsequently be accessed by digestive enzymes.
shibboleth (plural shibboleths) 1  A word, especially seen as a test, to distinguish someone as belonging to a particular nation, class, profession etc. 2  A common or longstanding belief, custom, or catchphrase associated with a particular group, especially one with little current meaning or truth. It's about time we abandoned the bourgeois shibboleth that earning money makes you a better person.
âº to put a shim between two parts of something to make them fit together, or to prevent them rubbing against each other: The baseboards have been cut, shimmed, sealed, and nailed. (Definition of âshimâ from the Cambridge Advanced Learnerâs Dictionary & Thesaurus Â© Cambridge University Press) What is the pronunciation of shim? Browse