graph(Noun) An ordered pair , where is a set of elements called vertices (or nodes) and is a set of pairs of elements of , called edges; informally, a set of vertices together with a set edges that join these vertices.
Clubbing is an enlargement of the ends of the fingers and a downward sloping of the nails. Although it's not caused by chronic obstructive pulmonary disease (COPD), it can be a sign of coexisting lung cancer or other lung disorders in patients with COPD. Clubbing is sometimes called digital clubbing. It can affect the fingers and/or toes.
External links related to: Digital clubbing. 1  eMedicine - Clubbing of the Nails : Article by Robert A Schwartz, MD, MPH. 2  OMIM - CLUBBING OF DIGITS. 3  DermAtlas: Online Dermatology Image Library dermatology image,clubbing of nails,nail dystrophy,pachydermoperiostosis.