viral envelope(redirected from Envelope (biology))
the outer structure or coat that encloses the nucleocapsids of some viruses that mature by budding through the membrane cell; may contain lipoprotein.
Farlex Partner Medical Dictionary © Farlex 2012
vi·ral en·ve·lope(vī'răl en'vĕ-lōp)
The outer structure that encloses the nucleocapsids of some viruses; may contain host material.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012