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).
[enÂ´vÄ-lÅp] 1. an encompassing structure or membrane. 2. in virology, the outer lipoprotein coat of a large virus, surrounding the capsid and usually furnished, at least partially, by the host cell. Called also peplos. 3. in bacteriology, the cell wall and the plasma membrane considered together. nuclear envelope the condensed double layer of lipids and proteins enclosing the cell nucleus and separating it from the cytoplasm; its two concentric membranes, inner and outer, are separated by a perinuclear space.