Sheath

A filamentous structure external to the wall.

sheath

  1. a protective covering for a knife or sword
  2. an enveloping structure or covering enclosing an animal or plant organ or part
  3. a dress suitable for formal occasions

sheath

(from the article `palm`) Leaves in the Palmae have a characteristic aspect but are diverse in size, shape, and division. Most have a sheath, petiole or leafstalk, and blade. ... Some of the structural strength required for grass plants to stand erect comes from the leaves, particularly the leaf sheaths. Arising at nodes and ... Leav...
Found on http://www.britannica.com/eb/a-z/s/78

sheath

(from the article `tendinitis`) inflammation of the sheaths of the tendons. These sheaths are composed of thin, filmy tissue that permits the sliding motion of tendons within them. ...
Found on http://www.britannica.com/eb/a-z/s/78

sheath

(shēth) a tubular case or envelope.
Found on http://www.encyclo.co.uk/local/21001

sheath

[n] - an enveloping structure or covering enclosing an animal or plant organ or part 2. [n] - a protective covering for a knife or sword
Found on http://www.webdictionary.co.uk/definition.php?query=sheath

Sheath

• (n.) The base of a leaf when sheathing or investing a stem or branch, as in grasses. • (n.) A case for the reception of a sword, hunting knife, or other long and slender instrument; a scabbard. • (n.) One of the elytra of an insect. • (n.) Any sheathlike covering, organ, or part.
Found on http://thinkexist.com/dictionary/meaning/sheath/

sheath

case noun an enveloping structure or covering enclosing an animal or plant organ or part
Found on https://www.encyclo.co.uk/local/20974

Sheath

Sheath noun [ Middle English schethe , Anglo-Saxon scǣð , sceáð , scēð ; akin to Old Saxon skēðia , Dutch scheede , German scheide , Old High German sceida , Swedish skida , Danish skede , Icelandic ...
Found on http://www.encyclo.co.uk/webster/S/84

Sheath

A catheter-like tube that is placed inside a patient’s vessel during an interventional procedure to help the doctor with insertion and proper placement of the actual catheter. Also called an introducer sheath.
Found on https://www.texasheart.org/heart-health/heart-information-center/topics/a-z

Sheath

a conduplicate, tubular to bract-like structure that is at the base of a leaf and has the inflorescence arise from it
Found on http://orchidfetish.com/glossary.html

Sheath

a conduplicate, tubular to bract-like structure that is at the base of a leaf and has the inflorescence arise from it
Found on http://www.orchidspecies.com/glossary.htm

Sheath

A leaf pocket that holds one or more flower buds until they are ready to bloom. Some types of orchids that produce sheaths are Cattleyas and Paphiopedilums.
Found on http://larrysorchids.com/pages/orchid-glossary-of-terms

Sheath

a leafy, tubular structure usually on a sedge or grass that envelopes the stem
Found on http://www.calflora.net/botanicalnames/botanicalterms.html

Sheath

a leafy, tubular structure usually on a sedge or grass that envelopes the stem
Found on http://www.encyclo.co.uk/local/21767

sheath

A modified leaf that encloses an emerging inflorescence or leaf.
Found on http://www.orchidplantcare.info/orchid-glossary/

sheath

A modified leaf that encloses and protects an emerging inflorescence or leaf. Normally dries and sloughs off, when inflorescence or leaf matures.
Found on http://www.clanorchids.com/clanglos.htm

sheath

A protective covering. ... The lower part of leaf enveloping stem or culm. ... A secreted, tubular structure formed around a chain of cells or around a bundle of filaments, cells within a sheath may or may not subsequently separate from the sheath. ... A layer of outer membrane covering the bacterial flagella. ... (09 Oct 1997) ...
Found on http://www.encyclo.co.uk/local/20973

sheath

a tubular or rolled part of an organ, e.g. the lower part of the leaf in most grasses.
Found on http://en.wikipedia.org/wiki/Glossary_of_botanical_terms

sheath

a uniform and continuous tubular covering of metallic or non-metallic material, generally extruded NOTE - The term sheath is only used for metallic coverings in North America, whereas the term jacket is used for non-metallic coverings.
Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=461-05-03

Sheath

an enveloping structure or covering enclosing an animal organ or part.
Found on http://www.sheep101.info/201/glossary.html

Sheath

An expanded or tubular structure that partially encloses a stem or other organ.
Found on http://www.encyclo.co.uk/local/20901

Sheath

An organ that wholly or partly encloses another organ, at its base.
Found on http://www.pcmg-texas.org/glossary_gardening_landscaping.htm

sheath

Another name for a condom
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0026185.html

Sheath

Any long or more or less tubular structure surrounding an organ or part.
Found on http://www.gardenology.org/wiki/Glossary_of_Gardening_Terms
No exact match found