|Pothole Dome in Tuolumne Meadows at Yosemite National Park|
|Unnamed roche moutonnée just north of Lembert Dome in Tuolumne Meadows|
|Hiking the gentle slope of Lembert Dome in Tuolumne Meadows|
|Looking down the western edge of Lembert Dome. Note the glacial polish on the summit ridge.|
So we teachers are left with trying to define the term as meaning "rock sheep" based on the nebulous idea that the rocks look like sheep grazing in meadows. Which they really don't. But it's still easier than trying to describe obscure French wigs from the 1700s and mutton grease.
But I still don't think they look like eroded glacial domes.
For an excellent description of the derivation of the geologic term, check out this great story from the Atlantic.