slovo | definícia |
medullary (encz) | medullary,dřeňový adj: Zdeněk Brož |
medullary (encz) | medullary,medulární adj: Zdeněk Brož |
Medullary (gcide) | Medullary \Med"ul*la*ry\, a. [L. medullaris, fr. medulla marrow:
cf. F. m['e]dullaire.]
1. (Anat.)
(a) Pertaining to, consisting of, or resembling, marrow or
medulla.
(b) Pertaining to the medula oblongata.
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2. (Bot.) Filled with spongy pith; pithy.
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Medullary groove (Anat.), a groove, in the epiblast of the
vertebrate blastoderm, the edges of which unite, making a
tube (the medullary canal) from which the brain and spinal
cord are developed.
Medullary rays (Bot.), the rays of cellular tissue seen in
a transverse section of exogenous wood, which pass from
the pith to the bark.
Medullary sheath (Anat.), the layer of white semifluid
substance (myelin), between the primitive sheath and axis
cylinder of a medullated nerve fiber.
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medullary (wn) | medullary
adj 1: containing or consisting of or resembling bone marrow
2: of or relating to the medulla oblongata
3: of or relating to the medulla of any body part |
| podobné slovo | definícia |
medullary ray (encz) | medullary ray, n: |
medullary sheath (encz) | medullary sheath, n: |
Medullary (gcide) | Medullary \Med"ul*la*ry\, a. [L. medullaris, fr. medulla marrow:
cf. F. m['e]dullaire.]
1. (Anat.)
(a) Pertaining to, consisting of, or resembling, marrow or
medulla.
(b) Pertaining to the medula oblongata.
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2. (Bot.) Filled with spongy pith; pithy.
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Medullary groove (Anat.), a groove, in the epiblast of the
vertebrate blastoderm, the edges of which unite, making a
tube (the medullary canal) from which the brain and spinal
cord are developed.
Medullary rays (Bot.), the rays of cellular tissue seen in
a transverse section of exogenous wood, which pass from
the pith to the bark.
Medullary sheath (Anat.), the layer of white semifluid
substance (myelin), between the primitive sheath and axis
cylinder of a medullated nerve fiber.
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Medullary cancer (gcide) | Cancer \Can"cer\, n. [L. cancer, cancri, crab, ulcer, a sign of
the zodiac; akin to Gr. karki`nos, Skr. karka[.t]a crab, and
prob. Skr. karkara hard, the crab being named from its hard
shell. Cf. Canner, Chancre.]
1. (Zool.) A genus of decapod Crustacea, including some of
the most common shore crabs of Europe and North America,
as the rock crab, Jonah crab, etc. See Crab.
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2. (Astron.)
(a) The fourth of the twelve signs of the zodiac. The
first point is the northern limit of the sun's course
in summer; hence, the sign of the summer solstice. See
Tropic.
(b) A northern constellation between Gemini and Leo.
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3. (Med.) Formerly, any malignant growth, esp. one attended
with great pain and ulceration, with cachexia and
progressive emaciation. It was so called, perhaps, from
the great veins which surround it, compared by the
ancients to the claws of a crab. The term is now
restricted to such a growth made up of aggregations of
epithelial cells, either without support or embedded in
the meshes of a trabecular framework.
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Note: Four kinds of cancers are recognized: (1) {Epithelial
cancer, or Epithelioma}, in which there is no
trabecular framework. See Epithelioma. (2) {Scirrhous
cancer, or Hard cancer}, in which the framework
predominates, and the tumor is of hard consistence and
slow growth. (3) Encephaloid cancer, {Medullary
cancer}, or Soft cancer, in which the cellular
element predominates, and the tumor is soft, grows
rapidy, and often ulcerates. (4) Colloid cancer, in
which the cancerous structure becomes gelatinous. The
last three varieties are also called carcinoma.
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Cancer cells, cells once believed to be peculiar to
cancers, but now know to be epithelial cells differing in
no respect from those found elsewhere in the body, and
distinguished only by peculiarity of location and
grouping.
Cancer root (Bot.), the name of several low plants, mostly
parasitic on roots, as the beech drops, the squawroot,
etc.
Tropic of Cancer. See Tropic.
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Medullary groove (gcide) | Medullary \Med"ul*la*ry\, a. [L. medullaris, fr. medulla marrow:
cf. F. m['e]dullaire.]
1. (Anat.)
(a) Pertaining to, consisting of, or resembling, marrow or
medulla.
(b) Pertaining to the medula oblongata.
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2. (Bot.) Filled with spongy pith; pithy.
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Medullary groove (Anat.), a groove, in the epiblast of the
vertebrate blastoderm, the edges of which unite, making a
tube (the medullary canal) from which the brain and spinal
cord are developed.
Medullary rays (Bot.), the rays of cellular tissue seen in
a transverse section of exogenous wood, which pass from
the pith to the bark.
Medullary sheath (Anat.), the layer of white semifluid
substance (myelin), between the primitive sheath and axis
cylinder of a medullated nerve fiber.
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Medullary rays (gcide) | Medullary \Med"ul*la*ry\, a. [L. medullaris, fr. medulla marrow:
cf. F. m['e]dullaire.]
1. (Anat.)
(a) Pertaining to, consisting of, or resembling, marrow or
medulla.
(b) Pertaining to the medula oblongata.
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2. (Bot.) Filled with spongy pith; pithy.
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Medullary groove (Anat.), a groove, in the epiblast of the
vertebrate blastoderm, the edges of which unite, making a
tube (the medullary canal) from which the brain and spinal
cord are developed.
Medullary rays (Bot.), the rays of cellular tissue seen in
a transverse section of exogenous wood, which pass from
the pith to the bark.
Medullary sheath (Anat.), the layer of white semifluid
substance (myelin), between the primitive sheath and axis
cylinder of a medullated nerve fiber.
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Medullary sheath (gcide) | Sheath \Sheath\, n. [OE. schethe, AS. sc[=ae][eth],
sce['a][eth], sc[=e][eth]; akin to OS. sk[=e][eth]ia, D.
scheede, G. scheide, OHG. sceida, Sw. skida, Dan. skede,
Icel. skei[eth]ir, pl., and to E. shed, v.t., originally
meaning, to separate, to part. See Shed.]
1. A case for the reception of a sword, hunting knife, or
other long and slender instrument; a scabbard.
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The dead knight's sword out of his sheath he drew.
--Spenser.
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2. Any sheathlike covering, organ, or part. Specifically:
(a) (Bot.) The base of a leaf when sheathing or investing
a stem or branch, as in grasses.
(b) (Zool.) One of the elytra of an insect.
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Medullary sheath. (Anat.) See under Medullary.
Primitive sheath. (Anat.) See Neurilemma.
Sheath knife, a knife with a fixed blade, carried in a
sheath.
Sheath of Schwann. (Anat.) See Schwann's sheath.
[1913 Webster]Medullary \Med"ul*la*ry\, a. [L. medullaris, fr. medulla marrow:
cf. F. m['e]dullaire.]
1. (Anat.)
(a) Pertaining to, consisting of, or resembling, marrow or
medulla.
(b) Pertaining to the medula oblongata.
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2. (Bot.) Filled with spongy pith; pithy.
[1913 Webster]
Medullary groove (Anat.), a groove, in the epiblast of the
vertebrate blastoderm, the edges of which unite, making a
tube (the medullary canal) from which the brain and spinal
cord are developed.
Medullary rays (Bot.), the rays of cellular tissue seen in
a transverse section of exogenous wood, which pass from
the pith to the bark.
Medullary sheath (Anat.), the layer of white semifluid
substance (myelin), between the primitive sheath and axis
cylinder of a medullated nerve fiber.
[1913 Webster] |
medullary ray (wn) | medullary ray
n 1: a sheet of vascular tissue separating the vascular bundles
[syn: vascular ray, medullary ray] |
medullary sheath (wn) | medullary sheath
n 1: a layer of myelin encasing (and insulating) the axons of
medullated nerve fibers [syn: medullary sheath, {myelin
sheath}] |
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