Let's Compare Mucosa and Serosa. 1  MUCOSA VS.  Mucosa. The mucous membranes (or mucosae or mucosas; singular mucosa) are linings of mostly endodermal origin, covered in epithelium, which are involved in absorption and secretion. mucosa \mucosa\ n.
Definition of dropper for English Language Learners. : a glass or plastic tube that is used to measure out liquids by drops.
Diskeeper is a program designed to replace the standard Windows defrag application. As anyone who knows a thing or two about computers will tell you, defragging your disk is essential. Over time you write a lot of 'stuff' on to your computers' hard drive.