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plasma    音标拼音: [pl'æzmə]
n. 血浆;乳浆;原形质;深绿玉髓

血浆;乳浆;原形质;深绿玉髓

plasma
等离子体

plasma
电浆

plasma
n 1: the colorless watery fluid of the blood and lymph that
contains no cells, but in which the blood cells
(erythrocytes, leukocytes, and thrombocytes) are suspended
[synonym: {plasma}, {plasm}, {blood plasma}]
2: a green slightly translucent variety of chalcedony used as a
gemstone
3: (physical chemistry) a fourth state of matter distinct from
solid or liquid or gas and present in stars and fusion
reactors; a gas becomes a plasma when it is heated until the
atoms lose all their electrons, leaving a highly electrified
collection of nuclei and free electrons; "particles in space
exist in the form of a plasma"

Plasma \Plas"ma\, n. [See {Plasm}.]
1. (Min.) A variety of quartz, of a color between grass green
and leek green, which is found associated with common
chalcedony. It was much esteemed by the ancients for
making engraved ornaments.
[1913 Webster]

2. (Biol.) The viscous material of an animal or vegetable
cell, out of which the various tissues are formed by a
process of differentiation; protoplasm.
[1913 Webster]

3. Unorganized material; elementary matter.
[1913 Webster]

4. (Med.) A mixture of starch and glycerin, used as a
substitute for ointments. --U. S. Disp.
[1913 Webster]

5. same as {blood plasma}.
[PJC]

6. (physics) a state of matter in which charged particles
such as electrons and atomi nuclei have sufficiently high
energy to move freely, rather than be bound in atoms as in
ordinary matter; it has some of the properties of a gas,
but is a conductor of electricity.

Note: In a typical plasma, the number of positive and
negative particles are approximately equal. Plasmas are
found naturally in the atmosphere of stars, and can be
created in special laboratory apparatus.
[PJC]

{Blood plasma} (Physiol.), the colorless fluid of the blood,
in which the red and white blood corpuscles are suspended.
It may be obtained by centrifuation of blood to remove the
blood cells. It is distinguished from {serum} in that
plasma still has the fibrin of blood, and may be clotted,
while in serum the fibrin has been removed.

{Muscle plasma} (Physiol.), the fundamental part of muscle
fibers, a thick, viscid, albuminous fluid contained within
the sarcolemma, which on the death of the muscle
coagulates to a semisolid mass.
[1913 Webster PJC] Plasmatic

52 Moby Thesaurus words for "plasma":
Rh factor, Rh-negative, Rh-positive, Rh-type, Rhesus factor,
antibody, antigen, arterial blood, blood, blood bank, blood cell,
blood count, blood donor, blood donor center, blood group,
blood grouping, blood picture, blood platelet, blood pressure,
blood serum, blood substitute, bloodmobile, bloodstream,
circulation, clinical dextran, dextran, erythrocyte, globulin,
gore, grume, hematics, hematologist, hematology, hematoscope,
hematoscopy, hemocyte, hemoglobin, hemometer, humor, ichor,
isoantibody, leukocyte, lifeblood, neutrophil, opsonin, phagocyte,
plasma substitute, red corpuscle, serum, type O, venous blood,
white corpuscle

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  • Plasma (physics) - Wikipedia
    Plasma is typically an electrically quasineutral medium of unbound positive and negative particles (i e , the overall charge of a plasma is roughly zero) Although these particles are unbound, they are not "free" in the sense of not experiencing forces
  • What Is Plasma in Blood? - Cleveland Clinic
    Plasma might be mostly water, but it’s still one of the most essential substances in your body It’s what gives your blood the ability to flow as a liquid, and it carries everything that your cells need to survive
  • Plasma | Physics, State of Matter, Facts | Britannica
    Plasma, in physics, an electrically conducting medium in which there are roughly equal numbers of positively and negatively charged particles, produced when the atoms in a gas become ionized
  • Science Made Simple: What Is Plasma? - SciTechDaily
    Plasma, making up 99% of the visible universe, exists predominantly in stars and space It forms when electrons detach from atoms, creating ions and free electrons, a state that can conduct electricity and exhibits complex behaviors
  • What Is Plasma? | MIT Plasma Science Fusion Center
    What Is Plasma? An electrified, glowing gas that powers stars, lightning, and the quest for fusion energy, plasma is the most abundant form of matter in the universe
  • What Is Plasma In Blood? | Red Cross Blood Services
    Plasma is the liquid portion of blood About 55% of our blood is plasma, and the remaining 45% are red blood cells, white blood cells and platelets that are suspended in the plasma Plasma is about 92% water
  • Plasma - grifols. com
    What is plasma? Plasma is the clear, pale yellow liquid portion of blood that suspends blood cells and makes up around 55% of total blood volume
  • Plasma Explained
    Discover the importance of plasma and how it is used to develop lifesaving treatments for patients around the world Learn about the science behind plasma and how it is collected and processed
  • DOE Explains. . . Plasma - Department of Energy
    Plasma is one of the four states of matter, along with gases, liquids, and solids Most people don’t think about plasma in their daily lives the way they think about other states of matter, but it makes up 99% of the visible matter in the universe
  • Platelet-Rich Plasma (PRP) Injection: How It Works - HSS
    Platelet-rich plasma therapy is a form of regenerative medicine that harnesses and amplifies the natural growth factors found in our blood cells to help heal damaged tissue What is plasma and platelets? What is a PRP injection? How are they performed? How do they work? What injuries can they treat? Are there side effects or risks?





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