Meaning of the word "addictive substance" in English

What does "addictive substance" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

addictive substance

US /əˈdɪktɪv ˈsʌbstəns/
UK /əˈdɪktɪv ˈsʌbstəns/

Noun

a substance that causes addiction

Example:
Nicotine is a highly addictive substance found in tobacco.
Many illegal drugs are highly addictive substances.