sheath

(redirected from dysmyelination)
Also found in: Thesaurus, Medical, Legal, Encyclopedia.

sheath

 (shēth)
n. pl. sheaths (shēthz, shēths)
1.
a. A usually close-fitting case or covering for a blade, as of a sword.
b. Any of various similar coverings.
2. Biology An enveloping tubular structure, such as the base of a grass leaf that surrounds the stem or the tissue that encloses a muscle or nerve fiber.
3. A close-fitting dress.
4. A condom.

[Middle English schethe, from Old English scēath; see skei- in Indo-European roots.]

sheath

(ʃiːθ)
n, pl sheaths (ʃiːðz)
1. a case or covering for the blade of a knife, sword, etc
2. any similar close-fitting case
3. (Biology) biology an enclosing or protective structure, such as a leaf base encasing the stem of a plant
4. (Electronics) the protective covering on an electric cable
5. (Clothing & Fashion) a figure-hugging dress with a narrow tapering skirt
6. another name for condom
vb
(tr) another word for sheathe
[Old English scēath; related to Old Norse skeithir, Old High German sceida a dividing; compare Old English scādan to divide]

sheath

(ʃiθ)

n., pl. sheaths (ʃiðz)
1. a case or close-fitting covering, esp. one for the blade of a sword, dagger, or the like.
2. a closely enveloping part or structure in an animal or plant.
3. a close-fitting dress, skirt, or coat, esp. a straight unbelted dress.
4. a condom.
[before 950; Old English scēath, c. Old High German sceida, Old Norse skeithir (pl.)]

sheath

- Seems to have first been a split stick that a sword could be inserted into.
See also related terms for sword.

sheath


Past participle: sheathed
Gerund: sheathing

Imperative
sheath
sheath
Present
I sheath
you sheath
he/she/it sheaths
we sheath
you sheath
they sheath
Preterite
I sheathed
you sheathed
he/she/it sheathed
we sheathed
you sheathed
they sheathed
Present Continuous
I am sheathing
you are sheathing
he/she/it is sheathing
we are sheathing
you are sheathing
they are sheathing
Present Perfect
I have sheathed
you have sheathed
he/she/it has sheathed
we have sheathed
you have sheathed
they have sheathed
Past Continuous
I was sheathing
you were sheathing
he/she/it was sheathing
we were sheathing
you were sheathing
they were sheathing
Past Perfect
I had sheathed
you had sheathed
he/she/it had sheathed
we had sheathed
you had sheathed
they had sheathed
Future
I will sheath
you will sheath
he/she/it will sheath
we will sheath
you will sheath
they will sheath
Future Perfect
I will have sheathed
you will have sheathed
he/she/it will have sheathed
we will have sheathed
you will have sheathed
they will have sheathed
Future Continuous
I will be sheathing
you will be sheathing
he/she/it will be sheathing
we will be sheathing
you will be sheathing
they will be sheathing
Present Perfect Continuous
I have been sheathing
you have been sheathing
he/she/it has been sheathing
we have been sheathing
you have been sheathing
they have been sheathing
Future Perfect Continuous
I will have been sheathing
you will have been sheathing
he/she/it will have been sheathing
we will have been sheathing
you will have been sheathing
they will have been sheathing
Past Perfect Continuous
I had been sheathing
you had been sheathing
he/she/it had been sheathing
we had been sheathing
you had been sheathing
they had been sheathing
Conditional
I would sheath
you would sheath
he/she/it would sheath
we would sheath
you would sheath
they would sheath
Past Conditional
I would have sheathed
you would have sheathed
he/she/it would have sheathed
we would have sheathed
you would have sheathed
they would have sheathed
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sheath - a protective covering (as for a knife or sword)sheath - a protective covering (as for a knife or sword)
aglet, aiglet - metal or plastic sheath over the end of a shoelace or ribbon
cot, fingerstall - a sheath worn to protect a finger
holster - a sheath (usually leather) for carrying a handgun
protective cover, protective covering, protection - a covering that is intend to protect from damage or injury; "they had no protection from the fallout"; "wax provided protection for the floors"
scabbard - a sheath for a sword or dagger or bayonet
2.sheath - an enveloping structure or covering enclosing an animal or plant organ or part
theca - outer sheath of the pupa of certain insects
lorica - a hard protective sheath (as secreted by certain protoctists, for example)
medullary sheath, myelin sheath - a layer of myelin encasing (and insulating) the axons of medullated nerve fibers
neurilemma, neurolemma - thin membranous sheath around a nerve fiber
covering, natural covering, cover - a natural object that covers or envelops; "under a covering of dust"; "the fox was flushed from its cover"
husk - outer membranous covering of some fruits or seeds
3.sheath - a dress suitable for formal occasionssheath - a dress suitable for formal occasions
dress, frock - a one-piece garment for a woman; has skirt and bodice

sheath

noun
1. scabbard, case She drew a combat knife from its sheath.
2. condom, rubber (U.S. informal), contraceptive, Durex (Brit. trademark), johnny (Brit. informal), prophylactic (U.S.), French letter (Brit. archaic) A rubber sheath placed over the erect penis stops sperm entering the vagina.
3. covering, casing, case, cover, sleeve It grows on a nerve sheath within the spinal column.

sheath

noun
A thin outer covering of an object:
Translations
غِلاف، قِرابغِمْد
pouzdroplášťpochva
=-hylsterhylsterskede
ScheideHülleBlattscheide
slíîur
鞘に収める
vagina
įkišti į makštį
apšuvumsapvalksfutrālismaksts
baljaskidaslida
vỏ

sheath

[ʃiːθ]
A. N (sheaths (pl)) [ʃiːðz]
1. (for sword) → vaina f, funda f
2. (around cable) → cubierta f
3. (Bio) → vaina f
4. (= contraceptive) → preservativo m
B. CPD sheath dress Nvestido m tubo
sheath knife Ncuchillo m de monte

sheath

[ˈʃiːθ] n
(for knife)gaine f
(around cable)gaine f
(= condom) → préservatif m

sheath

n (for sword etc) → Scheide f; (Bot) → (Blatt)scheide f; (on cable) → Mantel m, → Armierung f; (= contraceptive)Gummischutz m, → Kondom m or nt; (= dress)Futteralkleid nt; the cat withdrew its claws into their sheathsdie Katze zog die Krallen ein; the wing-sheath of an insectdie Flügeldecke eines Insekts

sheath

[ʃiːθ] n (gen) → guaina; (for sword) → guaina, fodero; (contraceptive) → preservativo

sheath

(ʃiːθ) plural sheaths (ʃiːθs ʃiːðz) noun
1. a case for a sword or blade.
2. a long close-fitting covering. The rocket is encased in a metal sheath.
sheathe (ʃiːð) verb
to put into a sheath. He sheathed his sword.

sheath

n. cubierta, capa o membrana protectora.

sheath

n vaina; nerve — vaina nerviosa or del nervio
References in periodicals archive ?
The research, "Computational modelling of the effects of auditory nerve dysmyelination," is published in Frontiers in Neuroanatomy.
neurofibromatosis, tuberous sclerosis) Myelination Dysmyelination
Dysmyelination revealed through MRI as increased radial (but unchanged axial) diffusion of water.