Is ILEUM a Wordle Word?

Yes. ILEUM is a valid Wordle word.

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

What does ILEUM mean?

The last, and usually the longest, division of the small intestine; the part between the jejunum and large intestine.

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

Starter word rating: AverageIn the top 26% of all valid Wordle words for testing common letters.
Vowels: I, E, U
Unique letters: 5 of 5
Common letters: I, L, E

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.