vigintillion

1. The cardinal number equal to 10⁶³.
2. Chiefly British The cardinal number equal to 10¹²⁰.

Origin:

Origin: Latin vīgintī, twenty; see wīkm̥tī- in Indo-European roots

Origin: + (m)illion

Related Forms:

• viˌgin·tilˈlion adjective

• viˌgin·tilˈlionth adjective, adv. & n.