BT AZ 46a(43) :לבינה הוא דמינכרא זקיפתה אבל ביצה דלא מינכרא זקיפתה לא‏ : does it apply to a brick, because it is clear that it has been erected, but not to an egg that has not clearly been erected? †
See the entire entry for zqyph#2 v.n. standing up