nonpolar covalent bond. (physical chemistry). A bond in which a pair of electrons is distributed or shared equally between two atoms. 1  Facebook.2  Twitter.onpolar covalent bond. (physical chemistry). A bond in which a pair of electrons is distributed or shared equally between two atoms. 1  Facebook.
When is a barrel chest a sign of a disease process? Chronic obstructive pulmonary disease (COPD) is the most common instance in which a barrel chest will occur. In these cases, itâs a sign of the lungs being over-expanded. This is caused by the loss of elasticity and results in the person having hyper-inflated lungs.
1 Barrel chest and Skeletal symptoms (16 causes). 2  Barrel chest and Respiratory symptoms (15 causes). 3  Barrel chest and Rib symptoms (15 causes). 4  Barrel chest and Body symptoms (13 causes). 5  Barrel chest and Limb symptoms (13 causes). 6  Barrel chest and Mouth symptoms (13 causes). 7  Barrel chest and Breath symptoms (12 causes).