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Terete is a term in botany used to describe a cross section that is circular, or like a distorted circle, with a single surface wrapping around it. That is usually contrasted with cross-sections that are flattened, with a distinct upper surface that is different from the lower surface. The cross-section of a branch in a tree is somewhat round, so the branch is terete. The cross section of a normal leaf has an upper surface, and a lower surface, so the

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