envelope

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envelope

 [en´vĕ-lōp]
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.

en·ve·lope

(en'vĕ-lōp), Avoid the mispronunciation ahn'vĕ-lōp.
In anatomy, a structure that encloses or covers.

envelope

/en·ve·lope/ (en´vĕ-lōp)
1. an encompassing structure or membrane.
2. in virology the peplos, a coat surrounding the capsid and usually furnished at least partially by the host cell.
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.

envelope

(ĕn′və-lōp′, ŏn′-)
n.
Biology An enclosing structure or cover, such as a membrane or the outer coat of a virus.

en·ve·lope

(en'vĕ-lōp)
anatomy Any structure that encloses or covers.

envelope

any enclosing structure, such as a membrane or skin. In bacteria, it is the part of the cell enclosing the cytoplasm, i.e. the cytoplasmic membrane cell wall and capsule. In VIRUSES, it is the outer lipid-containing layer of some virions.

en·ve·lope

(en'vĕ-lōp)
In anatomy, a structure that encloses or covers.

envelope

an encompassing structure or membrane. In virology, a bilayer lipoprotein membrane with glycoprotein spikes surrounding the nucleocapsid and usually furnished, at least partially, by the host cell. 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.
References in periodicals archive ?
Of course, that does not prevent agents from pushing the envelope in deciding whom to suggest for which role.
Eileen Conn of Sherman Oaks, a former writer for NBC's ``Mad About You,'' said she knew that she and the other writers were pushing the envelope when scripting some racy exchanges between the Buchmans (Paul Reiser and Helen Hunt).
RFF is looking for that next great voice in film -- artists pushing the envelope, shredding convention and making films without fear or creative limitations.
Everything about this place is pushing the envelope," Wynn said, using a pointer to indicate lakeside restaurants and shops on the model.
Half-Life 2 is pushing the envelope with contextual AI, simulated physics, characters that rival any digital actors in Hollywood, and advanced rendering capabilities," said Newell.
It's looking for that next great voice in film: artists pushing the envelope, shredding convention and making film without fear or creative limitations.
Shifting its focus from extreme stunts to surreal encounters, reality television has scored high ratings by pushing the envelope to catch contestants in compromising situations.