[ noun ] a mound of earth made by moles while burrowing <noun.object>
Molehill \Mole"hill`\, n. A little hillock of earth thrown up by moles working under ground; hence, a very small hill, or an insignificant obstacle or difficulty; as, to make a mountain out of a molehill.
Having leapt over such mountains, lie down before a molehill. --South.
William Merica doesn't want to make a mountain out of a molehill, but he did discover what a Harvard researcher says is one of the nation's largest anthills.