subvariant

noun

1. A subsidiary variant; a subtype of something.

   “DreamHack began in 1994, in the basement of a nearby elementary school, as a small, local subvariant of what was then called a ‘‘copyparty’’ — pre-broadband occasions to share software or demonstrate flashy off-label uses of early home computers.”

   “As with the previous Omicron subvariants, it seems likely that the US will follow those regions once again, with or without the new souped-up vaccines.”