rib cage
From Longman Dictionary of Contemporary EnglishRelated topics: Humanrib cageˈrib cage noun [countable] HBHHBAthe structure of ribs in your chestExamples from the Corpusrib cage• Your oblique abdominal muscle will contract as rib cage rotates.• I drive my chin into his rib cage.• The cold pressed into his rib cage.• His rib cage was missing on one side where a large piece of shell casing stuck out from under his breastbone.• The Endomorph isn't necessarily large framed but is sturdily built with a large rib cage, waist and hips.• It gradually tightens itself so as to not allow for expansion of the rib cage.