purge : Idioms & Phrases
binge-purge syndrome
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noun a disorder of eating in which the person alternates between strong craving for food and aversion to food; characterized by excessive eating followed by periods of fasting or self-induced vomiting
bulimarexia; binge-vomit syndrome; bulima nervosa.
WordNet
purging cassia
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noun deciduous or semi-evergreen tree having scented sepia to yellow flowers in drooping racemes and pods whose pulp is used medicinally; tropical Asia and Central and South America and Australia
drumstick tree; Cassia fistula; canafistula; canafistola; pudding pipe tree; golden shower tree.