Definition of IL 

(Entry 1 of 2)

1 Illinois

2 interleukin often used with an identifying number IL-6

il-

prefix

Definition of il- (Entry 2 of 2)

— see in-

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Dictionary Entries near IL

I know what you mean

ikon

il-

IL

Il'men'

ILA

ilama

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Kids Definition of IL

Illinois

il-

Kids Definition of il-

see in-

Medical Definition of IL 

interleukin often used with an identifying number IL-2 IL-6

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More from Merriam-Webster on IL

Spanish Central: Translation of IL

Nglish: Translation of IL for Spanish Speakers

Britannica English: Translation of IL for Arabic Speakers

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obstinately defiant of authority

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