catastalsis cat·a·stal·sis (kāt’ə-stôl’sĭs, -stāl’-)
A downward wave of contraction occurring in the gastrointestinal tract during digestion.


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  • Catastaltic

    catastaltic catastaltic cat·a·stal·tic (kāt’ə-stôl’tĭk, -stāl’-) adj. Restricting or inhibitory; restraining.

  • Catastasis

    the part of a drama, preceding the catastrophe, in which the action is at its height; the climax of a play. Compare catastrophe (def 4), epitasis, protasis. Historical Examples Consider therefore this pitiable Twentieth of June as a futility; no catastrophe, rather a catastasis, or heightening. The French Revolution Thomas Carlyle

  • Catastrophe

    a sudden and widespread disaster: the catastrophe of war. any misfortune, mishap, or failure; fiasco: The play was so poor our whole evening was a catastrophe. a final event or conclusion, usually an unfortunate one; a disastrous end: the great catastrophe of the Old South at Appomattox. (in a drama) the point at which the […]

  • Catastrophe-theory

    a theory, based on topology, for studying discontinuous processes and the mathematical models that describe them. noun a mathematical theory that classifies surfaces according to their form the popular application of this theory to the explanation of abruptly changing phenomena, as by the discontinuity of a line on the topmost fold of a folded surface […]

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