numerosityEtymologyFrom numerous + -ity, from Latin numerositas.numerosity means the condition of being numerous. Lexicurio rates it Rare gem — a strength score of 83 out of 100.nounThe condition of being numerous.The extent to which something is numerous.“We suggest that for small numerosities, the preverbal counter can run much faster than the verbal counting routine, so that the magnitude (the preverbal numeron) that represents the numerosity of an array is specified long before the verbal counting process has arrived at the correct numerlog.”Harmonious flow.