* It's a misspelling: Perhaps you meant "zinc", which refers to the chemical element with symbol Zn.
* It's a technical term: It might be a specific term used in a particular field or industry, like chemistry or metallurgy.
* It's a neologism: It could be a newly coined word not yet widely adopted.
If you can provide more context about where you encountered the word "zinic", I might be able to help you understand its meaning.