noun
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the sour taste that causes a painful feeling in the jaw where the tooth is or teeth are damaged.
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the citrus tree Citrus medica of Rutaceae family; lemon tree.
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its small, egg-shaped, edible frit with a pale-yellow rind and a juicy, sour pulp; lemon.
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the tree Feronia limonia (= f. elephantum) of Rutaceae family.
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its hard-shelled edible fruit; wood apple.