Is QUINA a Wordle Word?

Yes. QUINA is a valid Wordle word.

It is not on the Wordle answer list, so it is unlikely to be a daily answer.

What does QUINA mean?

Quinine“In the frequent naval expeditions, on the coast of Africa, quina is in general use as a prophylactic, yet fevers, often of great severity, constantly occur.”

Definition from Wiktionary, available under the CC BY-SA license.

Starter word rating: WeakIn the top 61% of all valid Wordle words for testing common letters.
Vowels: U, I, A
Unique letters: 5 of 5
Common letters: I, A
Rare letters: Q

Hard-mode trap: 6 valid words fit the pattern QUIN_. If you reach it, you may need several guesses to find the last letter.

Letter ratings use how often each letter appears in Wordle answers.

Tap its tiles to the colours Wordle showed, and the Wordle Solver lists every word that still fits, with the best next guess.