Of a market: divided such that no single actor can noticeably affect market-wide values such as the price; competitive.
Of or pertaining to atoms or to atomism.
Divided into separate elements; not holistic.
Of or pertaining to values that approach zero as a limit.
Incalculably, exceedingly, or immeasurably minute; vanishingly small.
Very small.
A non-zero quantity whose magnitude is smaller than any positive number (by definition it is not a real number).