If risen bread is desired, one must leaven the dough, either by mixing it with a piece of already leavened dough or leaving it exposed to yeast spores in the air for a period ranging from a single day to several, depending on the ambient conditions.
Medical Definition of RIB CAGE. : the bony enclosing wall of the chest consisting chiefly of the ribs and the structures connecting themâcalled also thoracic cage.ull Definition of RIB CAGE. : the bony enclosing wall of the chest consisting chiefly of the ribs and the structures connecting them. See rib cage defined for English-language learners.
Rib cage - Clinical significance. 1  Rib fractures are the most common injury to the rib cage. 2  Abnormalities of the rib cage include pectus excavatum (sunken chest) and pectus carinatum (pigeon chest). 3  Rib removal is the surgical removal of one or more ribs for therapeutic or cosmetic reasons.