(mathematics) A prime number that encodes information that is illegal to possess or distribute.

plural of illegal prime

Alternative form of no human being is illegal

(American football) Any kick made from in front of the line of scrimmage. This results in a loss of down and a ten yard penalty.

plural of illegal forward kick

To consider undocumented immigrants to be illegal immigrants is illegitimate.

simple past tense and past participle of illegalise

Third-person singular simple present indicative form of illegalise

Non-Oxford British English standard spelling of illegalize.

present participle of illegalise