noun, plural me·tas·ta·ses [muhtas-tuh-seez] /məˈtæs təˌsiz/.

  1. Pathology.
    1. the transference of disease-producing organisms or of malignant or cancerous cells to other parts of the body by way of the blood or lymphatic vessels or membranous surfaces.
    2. the condition produced by this.
  2. transformation(def 3).
  3. Rhetoric. a rapid transition, as from one subject to another.
  4. Physics. a change in position or orbit of an elementary particle.

noun plural -ses (-ˌsiːz)

  1. pathol the spreading of a disease, esp cancer cells, from one part of the body to another
  2. a transformation or change, as in rhetoric, from one point to another
  3. a rare word for metabolism

n.1570s, originally in rhetoric, from Late Latin metastasis “transition,” from Greek metastasis “a removing, removal; migration; a changing; change, revolution,” from methistanai “to remove, change,” from meta- “over, across” (see meta-) + histanai “to place, cause to stand,” from PIE root *sta- “to stand” (see stet). A rhetorical term in Late Latin for “a sudden transition in subjects,” medical use for “shift of disease from one part of the body to another” dates from 1660s in English. Related: Metastatic. n. pl. me•tas•ta•ses (-sēz′)

  1. Transmission of pathogenic microorganisms or cancerous cells from an original site to one or more sites elsewhere in the body, usually by way of the blood vessels or lymphatics.
  2. A secondary cancerous growth formed by transmission of cancerous cells from a primary growth located elsewhere in the body.

  1. A cancerous tumor formed by transmission of malignant cells from a primary cancer located elsewhere in the body.

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