ضمضم doesn't appear in Hans Wehr's Modern Standard Arabic dictionary, but Lane's Arabic-English Lexicon has 3 entries for it, distinguished by diacritics. Select one below for the full classical Arabic definition.

• ضَمْضَمَ Form R. Q. 1

  R. Q. 1 ضَمْضَمَ عَلَى المَالِ ذ He took all the property; (K;) as though he drew it, or gathered it, (ضَمَّهُ,) to himself. (TA.) [See also 5.] -b2- And ضَمْضَمَ He (a man, TA) encouraged his heat; or became courageous …

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• ضَمْضَمٌ

  ضَمْضَمٌ ذ A lion that grasps everything; as also . (S.) [See also ضَمْضَامٌ: and see what here follows.] -b2- Also, (S,) Angry; (S, K;) applied to a man: (S:) and, as also and , an angry lion: (K, TA:) or simply a lion:…

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• ضُمَضِمٌ

  ضُمَضِمٌ ذ : see ضَمْضَمٌ. -b2- Also Niggardly in the utmost degree. (IAar, TA.) [See also ضُمَاضِمٌ.]…

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