cardinal number - the number of elements in a mathematical set; denotes a quantity but not the ordernumber - a concept of quantity derived from zero and units; "every number has a unique position in the sequence" googol - a cardinal number represented as 1 followed by 100 zeros (ten raised to the power of a hundred) googolplex - a cardinal number represented as 1 followed by a googol of zeros (ten raised to the power of a googol) |