A new unit=1/1000000BTC. Bit is already taken, how to call a new unit/symbol?

[harrymmmm]

[X] micros or mics

just like dollar <-> cents ("cent" just means 1/100, it isn't "centdollar")

bitcoin <-> micros (1 millionth)

There can also be intermediary "millies" (1 thousandth of a bitcoin)

I believe if they're officially called millibitcoins and microbitcoins, "millies" and "micros" will become colloquially common anyway in every-day street language.

Yep.
So just leave it alone and it will work out well.

[BawsyBoss]

"ubit" sounds simple and different. It could become the next big thing... or not. We'll have to see. Bit is unacceptable in my opinion.