обвивка означава в английски

casing [casings]▼(that which encloses or encases)
noun
[UK: ˈkeɪs.ɪŋ] [US: ˈkeɪs.ɪŋ]

closure [closures]▼(mathematical set)
noun
[UK: ˈkləʊ.ʒə(r)] [US: ˈkloʊ.ʒə(r)]

envelope [envelopes]▼(something that envelops)
noun
[UK: ˈen.və.ləʊp] [US: ˈen.vəloʊp]

husk [husks]▼(exterior of certain vegetables or fruits)
noun
[UK: hʌsk] [US: ˈhəsk]

shell [shells]▼(chemistry: set of atomic orbitals that have the same principal quantum number)
noun
[UK: ʃel] [US: ˈʃel]

wrapper [wrappers]▼(something that is wrapped around something else as a cover or protection)
noun
[UK: ˈræ.pə(r)] [US: ˈræ.pər]

integument [integuments]▼(outer protective covering of body)
noun
[UK: ɪn.ˈte.ɡjʊ.mənt] [US: ˌɪn.ˈte.ɡjə.mənt]

armor▼(natural form of this kind of protection on an animal's body)
noun
[UK: ˈɑː.mə(r)] [US: ˈɑːr.mər]