In botany, describes an ovule or seed positioned so that its attachment and apex point in opposite directions compared to the standard arrangement.
From anti- (opposite) + -tropous (from Greek tropos, turn or direction). This botanical term specifically describes seed orientations within plant reproductive structures.
Plant reproductionuses these precise geometric terms because seed orientation actually matters—it affects how the embryo develops and how efficiently the seed can germinate when conditions are right.
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