رهل doesn't appear in Hans Wehr's Modern Standard Arabic dictionary, but Lane's Arabic-English Lexicon has 4 entries for it, distinguished by diacritics. Select one below for the full classical Arabic definition.

• رَهِلَ Form 1

  1 رَهِلَ لَحْمُهُ ذ , (S, K,) [aor. رَهَلَ ,] inf. n. رَهَلٌ, (JK, TA,) His flesh was, or became, quivering, and flaccid, or flabby: (S, K:) and (some say, TA) his flesh was, or became, inflated, or puffy, or swollen, (K…

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• رِهْلٌ

  رِهْلٌ ذ [in the Lexicons of Golius and Freytag رِهَلٌ] Thin clouds, resembling [falling] dew, (K, TA,) in the sky. (TA.)…

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• رَهَلٌ

  رَهَلٌ ذ Yellow water [or fluid] in the سُخْد [app. here meaning the membrane that encloses the fœtus of a beast]. (IDrd, K.)…

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• رَهِلٌ

  رَهِلٌ ذ Quivering, and flaccid, or flabby, flesh. (TA.) And رَهِلٌ الصَّدْرِ A horse quivering, and flaccid, or flabby, in the breast. (S, TA.)…

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