In this article. A solitary pulmonary nodule (SPN) is a single abnormality in the lung that is smaller than 3 cm in diameter. Generally, a pulmonary nodule must grow to at least 1 cm in diameter before it can be seen on a chest X-ray.
The name Mu is of Chinese origin. The meaning of Mu is wood. Mu is used as both a boys and girls name. It consists of 2 letters and 1 syllable and is pronounced Mu.
Definition of MUSSEL for Kids. 1. : a saltwater shellfish that has a long dark shell in two parts and is sometimes used as food. 2. : a freshwater clam of the United States with shells from which mother-of-pearl is obtained.ull Definition of MUSSEL. 1. : a marine bivalve mollusk (especially genus Mytilus) usually having a dark elongated shell. 2. : a freshwater bivalve mollusk (as of Unio, Anodonta, or related genera) that is especially abundant in rivers of the central United States and has a shell with a lustrous nacreous lining.