Starch can actually be both hydrophobic and hydrophilic, although it is most usually hydrophilic.
It can either refer to a person who is unreasonably afraid of water or something that repels water and doesn't mix well with it.
Maybe
Just a different word for carbohydrates, the stuff you find in bread and potatoes and pasta, which your body converts to glucose for energy. The words 'carbs' and 'carbohydrates' are very popular...
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