That's the miracle of the Quran, it is endless and whatever you understand the signs it, it still runs with harmony with the science.
Take the word Dahaha:
http://www.studyquran.org/LaneLexicon/Volume3/00000023.pdfLane Lexicon says the word
Dahaha means:
DAHA: spread, spread out, spread forth, EXPANDED, extended
Usage: God made the earth wide or ample; also said of an ostrich, he expanded or made wide with his foot or leg, the place where he was about to deposit his eggs, making cavities in the ground like those of bellies; said of a man, he spread, and made plain, even, or smooth; also, he threw or cast, and impelled, PROPELLED, or REMOVED FROM ITS PLACE, a stone with his hand;
DAHAHA: He COMPRESSED her
DAHA AL-BATN: The belly was or became large and hanging down; it became SWOLLEN or INFLATED, or big, and hung down, by reason of fatness or disease.
INDAHA: it (belly) became wide or DISTENDED.
The meanings in relation to earth in the qur'aan could be that it was made swollen, inflated, or distended, and also could be that the earth was propelled, removed from its place, like a stone thrown by the hand. So "daha" in relation to earth could be referring either to the shape of the earth (like that of a distended, swollen, inflated belly, hung down, or like that of the cavities in ground, shaped like bellies, dug by ostriches to lay their eggs, both of which imply it not being a perfect circle) or it could be referring to its elliptical orbit (like the trajectory of a stone propelled by throwing it by one's hand).