de·cil·lionth 
(dĭ-sĭlyənth)
(dĭ-sĭlyənth)n.
1. The ordinal number matching the number decillion in a series.
2. One of a decillion equal parts.
de·cillionth adv. & adj.
- incommunicability
- incommunicable
- incommunicably
- incommunicado
- incommunicative
- incommunicatively
- incommutability
- incommutable
- incommutableness
- incommutably
- incomparability
- incomparable
- incomparableness
- incomparably
- incompatibility
- incompatible
- incompatibleness
- incompatibly
- incompetence
- incompetency
- incompetent
- incompetently
- incomplete
- incomplete abortion
- incomplete dominance