1. Anatomy, Physiology. the liquid part of blood or lymph, as distinguished from the suspended elements.
  2. Cell Biology. cytoplasm.
  3. whey.
  4. a green, faintly translucent chalcedony.
  5. Physics. a highly ionized gas containing an approximately equal number of positive ions and electrons.

  1. variant of plasmo- before a vowel: plasmapheresis.

  1. a combining form with the meanings “living substance,” “tissue,” “substance of a cell,” used in the formation of compound words: endoplasm; neoplasm; cytoplasm.


  1. protoplasm of a specified typegerm plasm
  2. a variant of plasma

n combining form

  1. (in biology) indicating the material forming cellsprotoplasm; cytoplasm


  1. the clear yellowish fluid portion of blood or lymph in which the red blood cells, white blood cells, and platelets are suspended
  2. short for blood plasma
  3. a former name for protoplasm, cytoplasm
  4. physics
    1. a hot ionized material consisting of nuclei and electrons. It is sometimes regarded as a fourth state of matter and is the material present in the sun, most stars, and fusion reactors
    2. the ionized gas in an electric discharge or spark, containing positive ions and electrons and a small number of negative ions together with un-ionized material
  5. a green slightly translucent variety of chalcedony, used as a gemstone
  6. a less common term for whey

n.1610s, “mold or matrix, cast;” see plasma. Meaning “living matter of a cell” is from 1864. n.1712, “form, shape” (earlier plasm), from Late Latin plasma, from Greek plasma “something molded or created,” hence “image, figure; counterfeit, forgery; formed style, affectation,” from plassein “to mold,” originally “to spread thin,” from PIE *plath-yein, from root *pele- (2) “flat, to spread” (see plane (n.1)). Sense of “liquid part of blood” is from 1845; that of “ionized gas” is 1928. word-forming element meaning “a growth, a development; something molded,” from Greek -plasma, from plasma “something molded or created” (see plasma). n.

  1. Germ plasm.


  1. Variant ofplasmo-


  1. Material forming cells or tissue:cytoplasm.


  1. The clear, yellowish fluid portion of blood, lymph, or intramuscular fluid in which cells are suspended.
  2. Cell-free, sterilized blood plasma, used in transfusions.
  3. Protoplasm or cytoplasm.

  1. See blood plasma.
  2. Protoplasm or cytoplasm.
  3. One of four main states of matter, similar to a gas, but consisting of positively charged ions with most or all of their detached electrons moving freely about. Plasmas are produced by very high temperatures, as in the Sun and other stars, and also by the ionization resulting from exposure to an electric current, as in a fluorescent light bulb or a neon sign. See more at state of matter.

A state of matter in which some or all of the electrons have been torn from their parent atoms. The negatively charged electrons and positively charged ions move independently. The liquid part of blood or lymph. Blood plasma is mainly water; it also contains gases, nutrients, and hormones. The red blood cells, white blood cells, and platelets are all suspended in the plasma of the blood.

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