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 ?
TriQuint is pushing the envelope in size, performance and cost.
Of course, that does not prevent agents from pushing the envelope in deciding whom to suggest for which role.
We look forward to pushing the envelope with him through this next important chapter of his evolution as an artist.
Everything about this place is pushing the envelope," Wynn said, using a pointer to indicate lakeside restaurants and shops on the model.
Chipset vendors such as ST Micro are pushing the envelope to empower STB vendors in building that coveted 'residential gateway' at a price point attractive for the MSOs to launch.
Always known for pushing the envelope, Sanker's worldwide events have always been on the cutting edge, long before "Queer Eye for the Straight Guy" and "Will and Grace" ever hit the mainstream airwaves.
The team member offering his extraordinary sense of adventure and creativity is Josh Caldwell who enjoys pushing the envelope.
The "Naughty and Nice" campaign, which launches in August and September international magazines, portrays the global superstar pushing the envelope as a sexy pin-up style teacher, nurse and policewoman alongside herself as an equally provocative school girl, injured patient and street criminal.