quadrillionth

quad·ril·lionth

Q0009100 (kwŏ-drĭl′yənth)n.1. The ordinal number matching the number quadrillion in a series.2. One of a quadrillion equal parts.

quad·ril′lionth adv. & adj.

Thesaurus

Noun	1.	quadrillionth - one part in a quadrillion equal partsone-quadrillionthcommon fraction, simple fraction - the quotient of two integers
Adj.	1.	quadrillionth - the ordinal number of one quadrillion in counting orderordinal - being or denoting a numerical order in a series; "ordinal numbers"; "held an ordinal rank of seventh"