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.
This is where flipper teeth come in. Also called flippers, flipper teeth are lightweight, removable dentures that usually serve as a temporary tooth replacement option.Basically, they keep you from having to walk around with a visible gap in your teeth for several weeks.his is where flipper teeth come in. Also called flippers, flipper teeth are lightweight, removable dentures that usually serve as a temporary tooth replacement option.