الربو: هُوَ عسر النَّفس.
الربو: عسر في النفس يشبه نفس المتعب لخلط غليظ لزج أو غير ذلك.
(الربو) الرابية وداء نوبي تضيق فِيهِ شعيبات الرئة فيعسر التنفس (مج)
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