Word: invars
Part of speech: Noun
Syllables: in
vars
Definition: Plural of invar; an alloy of iron and nickel having a low coefficient of thermal expansion; used in tuning forks and measuring tapes and other instruments
Morphemes:
Affix: invar
Language: en
PoS: Noun
Meaning: An alloy of iron containing 35.5% nickel, and having a very low coefficient of expansion.
Affix: -s
Language: en
PoS: Suffix
Meaning: Used to form many pluralia tantum (nouns that are almost or entirely without singular forms).