IPA: /ˈmʌltiˌkoʊtɪd/
KK: /mʌltiˈkoʊtɪd/
Describing something that has several layers of coating applied to it.
The multicoated lens reduces glare and improves image quality.
Multicoated → It is formed from "multi-" (meaning many) and "coated" (from the verb "coat", meaning to cover). The word "multicoated" refers to something that has many layers of coating or covering.
Think of 'many' ('multi-') layers of 'covering' ('coated') — that's what multicoated means.
No commonly confused words.