Word: nacres
Part of speech: Noun
Syllables: na
cres
Definition: Plural of nacre; the iridescent internal layer of a mollusk shell
Morphemes:
Affix: nacre
Language: en
PoS: Noun
Meaning: A pearly substance which lines the interior of many shells; mother-of-pearl.
Affix: -s
Language: en
PoS: Suffix
Meaning: Used to form many pluralia tantum (nouns that are almost or entirely without singular forms).