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apoptosis
noun
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How to pronounce apoptosis:

Definition of apoptosis:

apoptosis (noun):
a type of cell death in which the cell uses specialized cellular machinery to kill itself; a cell suicide mechanism that enables metazoans to control cell number and eliminate cells that threaten the animal's survival.
a genetically directed process of cell self-destruction that is marked by the fragmentation of nuclear dna, is activated either by the presence of a stimulus or removal of a suppressing agent or stimulus, is a normal physiological process eliminating dna-damaged, superfluous, or unwanted cells, and when halted (as by gene mutation) may result in uncontrolled cell growth and tumor formation

Other 4-syllable words like apoptosis

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