intussusceptive growth


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aux·et·ic growth

growth by increase in the size of component cells.

intussusceptive growth

Growth within itself, as in a cell. Intussusceptive growth was previously defined as an increase in:
(1) Size of a cell, tissue or organ (i.e., hypertrophy); 
(2) Numbers of cells (e.g., hyperplasia).
It has since been repurposed in the context of angiogenesis as microvascular growth of blood vessels.