IPA: /ˌpɒlɪˈɒnɪməs/
KK: /pɑːlɪˈɒnɪməs/
Describing something that has many different names or titles.
The polyonymous nature of the plant species made it difficult for researchers to agree on a single name.
Comparative: more polyonymous
Superlative: most polyonymous
Polyonymous → It is formed from "poly-" (meaning many) and "onymous" (from Greek "onuma", meaning name). The word "polyonymous" refers to having many names or being known by multiple names.
Think of 'many' ('poly-') names ('onymous') to remember that 'polyonymous' means having multiple names.