naked virus, nonenveloped virus a virus lacking an outer lipoprotein bilayer. neurotropic virus one that has a predilection for and causes infection in nervous tissues, e.g., the rabies virus. Norwalk virus a calicivirus that is a common agent of epidemics of acute gastroenteritis. oncogenic viruses an epidemiologic class of viruses that are acquired by close contact or injection and cause usually persistent infection; they may induce cell transformation and malignancy.
Define stumbling block: an obstacle to progress; an impediment to belief or understanding : perplexity â stumbling block in a sentence an obstacle to progress; an impediment to belief or understanding : perplexityâ¦
In USA, block mean city block, 'hood, smallest area surrounded by streets. 2. In Central/Eastern Europe, Poland, post-DRG Germany & France, block is fuckin' HUGE apartment bulding made of concrete panels, where people live like rats in cages. Worst muthafuckin ghetto you can imagine.