Definition of Sheath

1. Noun. A protective covering (as for a knife or sword).

2. Noun. An enveloping structure or covering enclosing an animal or plant organ or part.
Exact synonyms: Case
Specialized synonyms: Theca, Lorica, Medullary Sheath, Myelin Sheath, Neurilemma, Neurolemma, Husk
Generic synonyms: Cover, Covering, Natural Covering
Derivative terms: Case

3. Noun. A dress suitable for formal occasions.
Exact synonyms: Cocktail Dress
Generic synonyms: Dress, Frock

Definition of Sheath

1. n. A case for the reception of a sword, hunting knife, or other long and slender instrument; a scabbard.

Definition of Sheath

1. Noun. A scabbard; a holster for a sword. ¹

2. Noun. Anything that has a similar shape to a scabbard for a sword that is for the purpose of holding an object that is longer than it is wide; a case. ¹

3. Noun. A tight-fitting dress. ¹

4. Noun. (British) A condom. ¹

5. Noun. The foreskin of certain animals, e.g. dogs and horses. ¹

6. Verb. To put an object (especially a weapon, in particular, a sword) into its sheath. ¹

¹ Source:

Definition of Sheath

1. to sheathe [v -ED, -ING, -S] - See also: sheathe

Medical Definition of Sheath

1. 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)

Sheath Pictures

Click the following link to bring up a new window with an automated collection of images related to the term: Sheath Images

Lexicographical Neighbors of Sheath

sheath (current term)
sheath cake
sheath knife
sheath knives
sheath ligaments
sheath of Key and Retzius
sheath of Schwann
sheath of Schweigger-Seidel
sheath of thyroid gland
sheath pile
sheath rot

Literary usage of Sheath

Below you will find example usage of this term as found in modern and/or classical literature:

1. Anatomy, Descriptive and Surgical by Henry Gray (1901)
"The coverings of a femoral hernia, from within outward, are—peritoneum, subserous areolar tissue, the septum crurale, crural sheath, cribriform fascia, ..."

2. United States Supreme Court Reports by Lawyers Co-operative Publishing Company, United States Supreme Court (1888)
"This illustration shows a three-part sheath, the two outer bars N N' being ... "Previous to using the sheath the key G is first inserted in the notches g g' ..."

3. Anatomy, Descriptive and Surgical by Henry Gray, Henry Vandyke Carter, Luther Holden (1878)
"The pubic side of the space is occupied by the femoral vessels included in their sheath, a small oval-shaped interval existing between the femoral vein and ..."

4. Bulletin of the Museum of Comparative Zoology by Museum of Comparative Zoology, John E. Cadle, Harvard University (1905)
"Proboscis and Proboscis sheath. The proboscis is attached to the tissues of the head in the region of the brain and extends backward in an outer closed tube ..."

5. Infections of the Hand: A Guide to the Surgical Treatment of Acute and by Allen Buckner Kanavel (1914)
"The extension from one sheath to another follows strictly on anatomical lines. Apparent exception to this is found in simultaneous involvement of the thumb ..."

Other Resources Relating to: Sheath

Search for Sheath on!Search for Sheath on!Search for Sheath on Google!Search for Sheath on Wikipedia!