* Is a misspelling: Perhaps it's meant to be "illume" which means to light up or brighten.
* Is a specific term: It could be a technical term in a specific field, like science or medicine.
* Is a name: It could be a personal name or a brand name.
* Is a word in another language: It might be a word with a different meaning in another language.
To understand the meaning of "eluma," please provide more context. For example:
* Where did you see or hear this word?
* What was the context?
* What language is it in?
With more information, I can give you a more accurate answer.