Definition of "infinitesimally" [in•fin•i•tes•i•mal•ly]

• In an infinitesimal manner. (adverb)
• To an infinitesimal degree. (adverb)

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• "The move was a symbolic gesture to show that he is contributing "infinitesimally" more than the board for an estimated half-billion-dollar liability down the road."
• "We simply know nothing about the physics -- if any -- beyond the infinitesimally thin wall of the universal hologram."
• "The Campaign for Safe Cosmetics tells us nothing about one of the most important elements of risk... what dose causes what level of risk the risk from infinitesimally small doses like this is usually infinitesimal or non-existent."