Are IOTA and MiOTA the same?

Could you please clarify the relationship between IOTA and MiOTA? I've heard these terms used interchangeably, but I'm not entirely sure if they refer to the same thing or if there's a significant difference between them. Are they indeed synonymous, or do they have distinct meanings within the cryptocurrency and blockchain sphere? If they're not the same, could you elaborate on the key differences between them? Thank you for your assistance in clarifying this matter.