Definition of "reducible" [re•du•ci•ble]

• Capable of being reduced. (adjective)
• Able to be factored into polynomials of lower degree, as . (adjective)
• Able to be factored into smaller integers; composite. (adjective)
• Containing a sphere of codimension 1 that is not the boundary of a ball. (adjective)

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• "The Manual of Reason raises three questions about this relation: (i) Is it a new and irreducible type or relation, not reducible, that is, to any of the relations already admitted (TSD 66a)?"
• "Natural intelligence is in other words reducible to regularities and chance: For instance we have information on how humans typically go about making stone tools and using this knowledge combined with additional knowledge and evidence we can conclude that the chipped pieces of stone were in fact tools."
• "Hernias that come and go are called reducible hernias."