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noun:
- The main the main hilum of a seed, whereby the nutrient vessels go into the rhaphe or chalaza.
- The main part of the hilum of a seed, by which the nutrient vessels go to the rhaphe or even the chalaza; -- called also omphalodium.
- The omphalos, umbilicus, or waist line.
- In botany, same as omphalodium.
How would you define omphalode?