Steve Mercer/Photographer's Choice/Getty Images. Definition: The acronym HTTP stands for Hyper Text Transfer Protocol-the technology used to communicate between web servers and web users. This protocol is the foundation for large, multi-functioning, multi-input systems-like the World Wide Web.efinition: The acronym HTTP stands for Hyper Text Transfer Protocol-the technology used to communicate between web servers and web users.
B. The small terminal villi of a term placenta (hematoxylin-eosin, Ã10). C. Vasculosyncytial membrane (arrows) is the hallmark of a term villus, near fusion of the trophoblast basement membrane with the fetal capillary endothelium, with adjacent normal syncytial knots (hematoxylin-eosin, Ã40).
a thin layer of tissue that covers a surface, lines a cavity, or divides a space or organ. adj., adj memÂ´branous. alveolar-capillary membrane (alveolocapillary membrane) a thin tissue barrier through which gases are exchanged between the alveolar air and the blood in the pulmonary capillaries.Called also blood-air barrier and blood-gas barrier. alveolodental membrane periodontium. arachnoid membrane arachnoid. thin layer of tissue that covers a surface, lines a cavity, or divides a space or organ. adj., adj memÂ´branous. alveolar-capillary membrane (alveolocapillary membrane) a thin tissue barrier through which gases are exchanged between the alveolar air and the blood in the pulmonary capillaries.