1. The act of dividing into segments; the state of being divided into segments. 2. SYN: cleavage (1).
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seg·men·ta·tion .seg-(.)men-'tā-shən n
1) the act or process of dividing into segments esp the formation of many cells from a single cell (as in a developing egg)
2) annular contraction of smooth muscle (as of the intestine) that seems to cut the part affected into segments compare PERISTALSIS
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seg·men·ta·tion (seg″mən-taґshən) 1. division into parts more or less similar, such as somites or metameres. 2. cleavage.Medical dictionary. 2011.