infinitesimal in Greek
infinitesimal in Greek
απειροστός
(mathematics, not comparable) Of or pertaining to non-zero quantities whose magnitude is less than any positive rational number.
απειροελάχιστος
(informal) Very small.
πολλοστημόριο
(mathematics) A non-zero quantity whose magnitude is smaller than any positive number (by definition it is not a real number).