Signs and symptoms of an effusion vary depending on the underlying disease, but dyspnea, cough, and pleuritic chest pain are common. Chest examination of a patient with pleural effusion is notable for dullness to percussion, decreased or absent tactile fremitus, decreased breath sounds, and no voice transmission.
Medical Definition of velamentous insertion. : attachment of the umbilical cord to the chorion beyond the margin of the placenta.
velum. n, pl-la (-lÉ). 1. (Zoology) zoology any of various membranous structures, such as the ciliated oral membrane of certain mollusc larvae or the veil-like membrane running around the rim of a jellyfish. 2. (Anatomy) anatomy any of various veil-like bodily structures, esp the soft palate.