I've never heard "microkitchen". Where I work, it's just a kitchen. A pretty big kitchen, actually, so prepending "micro" would feel strange. Are Google's microkitchens small?
IIRC, there's some legal definition too: a micro kitchen can't have ice or something. Once it does it's subject to different rules, so we need to go to the real kitchens to get ice.
> Some other companies have the same sort of thing going on. They don't always get the same name applied (sometimes they're just "kitchens"), but similar behaviors seem to follow them around.