thorax defined in 1951 yearthorax - thorax;
thorax - (1) In terrestrial vertebrates region of the body containing heart and lungs (chest). Only in mammals is it clearly marked off from the abdomen by the diaphragm. (2) In insects, the group of three segments behind the head which bears the three pairs of legs and (when present) the wings.
near thorax in Knolik
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