IPA: /oʊˌdɔːrɪˈfɜːrnəs/
KK: /oʊˌdɔːrɪˈfərəsnəs/
The quality or state of having a strong smell or fragrance.
The odoriferousness of the flowers filled the garden with a sweet scent.
Odoriferousness → It is formed from "odor" (from Latin "odor", meaning smell) and "-iferous" (from Latin "ferre", meaning to bear or carry) combined with the suffix "-ness" (meaning the state or quality of). The word "odoriferousness" refers to the quality of bearing or carrying a smell.
Think of 'odor' as the smell being 'carried' ('-iferous') — that's why 'odoriferousness' means the quality of having a smell.